The Nike Free Metcon 6 delivers a superb balance of flexibility and stability, making it ideal for cross-training and HIIT workouts. Reviewers praised its lightweight design, breathability, and cushioning for high-impact exercises, while also noting its excellent support for lifting up to 350 lbs. RunRepeat called it a 'true gym all-rounder' that feels stable during weightlifting yet barefoot-like for plyometrics. However, it's not suited for rope climbing and can be difficult to slip on due to its narrow opening. This shoe is best for athletes seeking a versatile trainer that excels in mixed workouts rather than specialized disciplines like Olympic weightlifting or high-impact cardio.
Full review
1.2 ounces lighter than the Free Metcon 5
Nike's Free Metcon 6 represents a significant refinement of the line's design philosophy, delivering a cleaner aesthetic compared to its predecessor. RunRepeat's review credits Nike with 'having tweaked a few design features' to produce 'an even lighter, airier, bendier, and more supportive iteration of the Free Metcon line.' The updated design features a more streamlined silhouette with improved laser siping that enhances flexibility while maintaining structural integrity. The upper construction employs a new engineered mesh that provides a sock-like fit, with the addition of FlyWire lacing system that ensures a custom fit. According to That Fit Friend's Jake Boly, the shoe's construction includes a dual-density midsole with softer forefoot cushioning and a denser heel foam, creating a balance between responsiveness and stability. The Free Metcon 6 weighs 10.8 ounces, which is notably lighter than the 12.0 ounces of the Free Metcon 5, making it more comfortable for extended wear. Box Basics emphasizes that the shoe's rounded big toe area and anatomically designed fit contribute to its superior comfort, while the larger sidewalls provide added support during dynamic movements.
The build quality of the Free Metcon 6 is evident in its durability and performance under stress. Fit at Midlife's Tim notes that the upper is stretchy and comfortable, with abrasion-prone areas well-protected. The outsole features laser siping that provides excellent grip on gym surfaces, and the dual-density midsole delivers the right amount of cushioning without compromising stability. The shoe's full slip-on design makes it easy to put on and get to training quickly, with pull loops on both front and back for easier entry. However, some reviewers have noted that the narrow opening can make the shoe difficult to put on, particularly for those with wider feet. The heel counter is described as moderately stiff, providing good support without being overly rigid, and the overall construction feels robust enough to withstand regular gym use. The updated design also includes a more substantial toe box compared to previous versions, though it's not exceptional for those with unusually wide feet.
Performance in the Gym
Nike Free Metcon 6 excels in versatility, handling a wide range of gym activities from high-intensity interval training to weightlifting with commendable consistency. RunRepeat's review highlights that the shoe performs exceptionally well in cross-training, cardio, and weightlifting, with a stability rating of 89 for moderate weightlifting and 96 for cardio. The shoe's ability to support lifts up to 350 lbs while maintaining a barefoot-like feel for plyometrics is particularly praised. According to That Fit Friend's Jake Boly, the Free Metcon 6 offers excellent stability for lifting up to 315-365 lbs, with compression starting around 275-315 lbs but not significantly impacting performance. The wider platform allows for better toe splay during heavy lifts, which is a significant advantage over competitors like the Reebok Nano Gym. The shoe's flexibility is further enhanced by its new engineered mesh upper and laser siping, making it ideal for dynamic movements like burpees, sled pushes, and lunges. The dual-density midsole provides a good balance of cushioning for HIIT workouts while maintaining the stability needed for heavy lifting.
In terms of specific performance metrics, the Free Metcon 6 delivers impressive results across multiple categories. The shock absorption in the heel measures 102 SA, exceeding the category average at 82 SA, making it suitable for high-impact work. The forefoot remains controlled at 60 SA, which is consistent with the training shoe average. The energy return is moderate at 40.4% in the heel and 45.4% in the forefoot, providing a static and stable underfoot experience ideal for mixed cardio and strength training workouts. The heel stack of 22.0 mm is slightly lower than the Free Metcon 5, while the forefoot stack is 3 mm lower at 14.8 mm, contributing to a more grounded and flexible feel. The shoe's 7.2 mm heel-to-toe drop sits between a runner's geometry and a lifter's, which is what makes it usable for both. However, Fit at Midlife's Tim notes that while the shoe is comfortable for long durations, it's not designed for running long distances, with the cushioning being more suited for impact absorption during fitness classes and high-impact moves like box jumps.
69 percent of buyers found it true to size
Comfort and fit are where the Nike Free Metcon 6 truly shines, with reviewers consistently praising its sock-like upper and accommodating toe box. RunRepeat's review states that the shoe offers a 'sock-like fit in a bootie upper' with an 'accommodating toebox for medium feet,' and the fit is described as 'true to size' with a 'wider platform' that allows for better toe splay during heavy lifts. The engineered mesh upper provides excellent breathability while maintaining a snug fit, and the FlyWire lacing system ensures a custom fit that adapts to the foot's shape. Box Basics highlights that the wider toe box and dual-density midsole provide a perfect balance of comfort and stability, making it one of their favorite training shoes. Fit at Midlife's Tim notes that the upper is stretchy and comfortable, with considerable cushion in both the outsole and midsole, making it suitable for all-day wear. The ample heel cup prevents heel slippage, and the pull loops on both front and back make it easier to slide into the shoe.
However, fit variations have been noted by several reviewers. Zappos customer reviews show mixed feedback on sizing, with 69% reporting that the shoe felt true to size, but some users experienced issues with width. One reviewer noted that the shoe was 'way too wide' and couldn't be tightened properly, with excess material bunching up at the sides. Another customer reported that the shoe kept rubbing against their ankle on one foot but not the other, suggesting potential fit inconsistencies. The wide toe box is praised by most reviewers, but it's noted that those with unusually wide feet may still find it insufficient. The arch support is described as moderate, which may not be ideal for those with very flat feet. The shoe's lightweight design of 10.8 ounces contributes to its comfort, making it suitable for extended wear during long training sessions or daily activities.
RunRepeat's top 2 percent training shoe
The consensus among reviewers is that the Nike Free Metcon 6 delivers exceptional value for money, particularly for those seeking a versatile training shoe. RunRepeat's review awards the Free Metcon 6 a score of 94, calling it 'superb' across all categories with a 'high value for money' rating. The shoe's ability to perform well in cross-training, cardio, and weightlifting simultaneously is a major selling point. The flexibility of the Free Metcon 6 is particularly praised, with reviewers noting that it feels 'barefoot-like' when switching to plyometrics while maintaining enough stability for moderate weightlifting. The breathability of the engineered mesh upper is consistently highlighted as a standout feature, with RunRepeat noting that it's 'very light on foot' and 'airier' than average. The wide toe box is another frequently mentioned positive, with reviewers noting that it accommodates medium feet well and allows for comfortable toe splay during heavy lifts.
The shoe's performance in HIIT workouts is also highly praised, with reviewers noting its excellent stability for moderate weightlifting and abundant cushioning for HIIT. That Fit Friend's Jake Boly recommends the Free Metcon 6 for those who love taking classes but still lift, stating that it's 'the best between these three in the lifting category' and has 'the widest toe box.' The dual-density midsole is particularly appreciated, with its softer forefoot cushioning providing good response for jumping and running, while the denser heel foam offers stability during lifting. The shoe's ability to handle a variety of training activities without compromising performance is highlighted as a key strength, with reviewers noting that it's suitable for everything from burpees to sled pushes to heavy squats. The update is more than cosmetic: RunRepeat found the v6 carries 'notably more rubber coverage than its predecessor while also adding some herringbone texture and waffle treads throughout the outsole,' and summed the generation up as 'an even lighter, airier, bendier, and more supportive iteration of the Free Metcon line.'
Tears instantly if used for rope climbs
Despite its many strengths, the Nike Free Metcon 6 does have some notable limitations that potential buyers should consider. The most significant drawback is its lack of protection for rope climbing, as noted by RunRepeat, which explicitly states that it's 'NOT for rope climbs (lacks protection)' and that 'the upper and midsole with tear instantly' if used for rope climbing. This makes it unsuitable for those who incorporate rope climbing into their training regimen. Additionally, the narrow opening can make the shoe difficult to put on, particularly for those with wider feet, as highlighted in Zappos customer reviews where one user noted that the shoe was 'way too wide' and couldn't be tightened properly. The moderate arch support may not be sufficient for those with very flat feet, and some reviewers have noted that the shoe can rub against the ankle on one foot but not the other, indicating potential fit inconsistencies.
Another limitation is that the Free Metcon 6 is not ideal for Olympic weightlifting or maxing out at 400+ lbs, as recommended by RunRepeat, which suggests that those looking for maximum stability for heavy lifting should consider the Nike Metcon 9 instead. The shoe's design, while excellent for general cross-training, may not provide the specialized support needed for high-level Olympic weightlifting. The moderate energy return, while suitable for mixed cardio and strength training, may disappoint those looking for more springback for high-impact activities. The shoe's performance in running-specific activities is also limited, with Fit at Midlife's Tim noting that while it's better than the Metcon 9 for running, it's still not a running shoe and isn't suitable for long-distance running. The durability concerns are also noted, with some reviewers questioning whether the lighter, more comfortable upper will compromise long-term durability.
Stable enough for lifts up to 350 pounds
The Nike Free Metcon 6 is ideal for fitness enthusiasts who engage in a variety of gym activities and want a versatile training shoe that performs well across different disciplines. RunRepeat's review recommends it for those seeking 'a super flexible HIIT shoe to accommodate planks, burpees, sled pushes, lunges, etc.' The shoe's ability to handle both cardio and strength training makes it particularly suitable for CrossFit athletes and general gym-goers who don't want to compromise on performance. According to That Fit Friend's Jake Boly, it's the best choice for those who 'love taking classes but lifting is still a big part of your training,' and it's recommended for those who want 'the widest toe box' and 'enough stability for lifting up to 350 lbs.' The Free Metcon 6 is also excellent for those who spend all day on their feet, as it's described as 'the most comfortable' of the three models compared and 'perfect for daily wear.' The wide toe box and accommodating fit make it particularly suitable for those with medium feet, though those with unusually wide feet may find it insufficient.
The shoe is also well-suited for individuals who want a training shoe that can handle both general fitness classes and weightlifting without needing to switch between different pairs. RunRepeat's review notes that the Free Metcon 6 offers 'enough stability for lifting up to 350 lbs' and 'abundant cushioning for HIIT,' making it a good choice for those who want a single shoe for multiple activities. The lightweight design of 10.8 ounces makes it ideal for those who need to be comfortable during extended training sessions or all-day wear. However, it's not recommended for those who primarily focus on Olympic weightlifting or maxing out at 400+ lbs, as the Free Metcon 6 lacks the specialized support needed for such high-level lifting. Similarly, those who engage in rope climbing should avoid this shoe, as it lacks the protection needed for that activity. The shoe's design makes it particularly suitable for those who want a balance between flexibility and stability, making it a good choice for general fitness enthusiasts rather than specialized athletes.
Scores 94 versus the MC Trainer 3's 72
When compared to its direct competitors, the Nike Free Metcon 6 stands out as a versatile and well-rounded training shoe that offers excellent value for money. RunRepeat's review places it in the top 2% of training shoes, with a score of 94, significantly outperforming the Nike MC Trainer 3 (72) and the Nike Free Metcon 7 (84). The Free Metcon 6's superior performance in cross-training and cardio, combined with its stability for weightlifting, makes it a strong contender against the Reebok Nano Gym and Adidas RapidMove ADV 2. That Fit Friend's Jake Boly notes that the Free Metcon 6 is 'the best between these three in the lifting category' and has 'the widest toe box,' making it superior to both the Nano Gym and RapidMove ADV 2 for lifting activities. The Nano Gym is criticized for being 'wicked narrow' and having an 'awkwardly high heel-to-toe drop,' while the RapidMove ADV 2 is noted for having a 'super responsive' Lightstrike Pro midsole but being 'not as forgiving for heel strikers.' The Free Metcon 6's dual-density midsole provides a good balance of cushioning and stability that's superior to both competitors in terms of versatility.
In terms of specific metrics, the Free Metcon 6 outperforms its competitors in several key areas. The heel stack of 22.0 mm is lower than the Nike Free Metcon 7 (22.0 mm) and the Nike MC Trainer 3 (30.4 mm), but the forefoot stack of 14.8 mm is more flexible than the Reebok Nano Gym (21.5 mm) and Adidas RapidMove ADV 2 (21.8 mm). The Free Metcon 6's shock absorption in the heel (102 SA) exceeds that of the Nike MC Trainer 3 (82 SA) and the Nike Free Metcon 7 (118 SA), while its forefoot shock absorption (60 SA) is comparable to the Reebok Nano Gym (60 SA) and Adidas RapidMove ADV 2 (60 SA). The energy return measurements of 40.4% in the heel and 45.4% in the forefoot are moderate but suitable for mixed cardio and strength training, which is better than the Nike MC Trainer 3's 32.0% and 72.0% respectively. The Free Metcon 6's 7 mm drop is more suitable for general gym use compared to the Nike MC Trainer 3's 8.9 mm and Nike Free Metcon 7's 8.8 mm, making it more versatile for different activities.
30 dollars cheaper than the Air Zoom TR 1
At $120, the Nike Free Metcon 6 offers exceptional value for money, particularly when compared to its competitors. RunRepeat's review awards it a 'high value for money' rating, placing it in the top 2% of training shoes and the top 6% of Nike training shoes. The shoe's ability to perform well across multiple disciplines - cross-training, cardio, and weightlifting - makes it a cost-effective choice for fitness enthusiasts who want a single shoe for various activities. The price point is competitive with other premium training shoes, such as the Nike Air Zoom TR 1 ($150) and Nike Zoom SuperRep 4 ($125), but the Free Metcon 6 offers better versatility and performance in the weightlifting category. The shoe's lighter weight (10.8 ounces) compared to the Free Metcon 5 (12.0 ounces) and other competitors like the Nike MC Trainer 3 (10.4 ounces) and Nike Free Metcon 7 (11.5 ounces) contributes to its value proposition, as it's more comfortable for extended wear without compromising performance.
The Free Metcon 6's value is further enhanced by its durability and build quality, which are noted by multiple reviewers as being superior to previous versions. Fit at Midlife's Tim mentions that the shoe's upper is 'very comfortable' and 'super-comforable' with 'considerable cushion in the outsole and midsole,' suggesting it will last for extended use. The updated design and improved materials make it a worthwhile investment for serious gym-goers who want a versatile, high-performing training shoe. The shoe's ability to handle a wide range of activities without compromising performance makes it a cost-effective choice compared to having to purchase multiple specialized shoes for different activities. The price point of $120 is justified by the shoe's superior performance in all major categories, with RunRepeat's 94 score indicating it's one of the best training shoes available at this price point. The value proposition is further strengthened by the shoe's ability to serve as both a daily trainer and a specialized performance shoe for various gym activities.
Strengths
- +Fantastic breathability
- +Very light on foot (lighter than average too)
- +Abundant cushioning for HIIT
- +Most flexible cross-trainer ever
- +Excellent stability for moderate weightlifting
Watch-outs
- −NOT for rope climbs (lacks protection)
- −Can be hard to put on (narrow opening)
How it compares
The Nike Free Metcon 6 excels in flexibility and breathability compared to the Nike Metcon 10, which is more stable but less flexible. However, it lacks the grip and stability of the NOBULL Trainer+, which is better suited for rope climbing and raw training.
Rating sources
“This is my favorite CrossFit style training shoe for 2024. It's better than the Nike Free Metcon 5 and it's much more versatile than the Nike Metcon 9.”
“The Nike Free Metcon 6 has quickly become one of the best sellers at Box Basics for 2024.”
Our 4.4 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
