• Discontinued
  • Use


    Shoes with optimum cushioning, lateral support, and flexibility for daily workouts and studio sessions. See workout shoes


    Versatile, low-profile shoes for constantly varied exercises including plyometrics, sprinting, weightlifting, and rope climbing. See CrossFit shoes


    Heavy-duty shoes with a wedge and an elevated heel that create a sturdy platform and promote ankle mobility. See weightlifting shoes


    Shoes for daily wear that ensure a smooth walking gait cycle. Check out walking shoes

  • Arch support


    For people with normal pronation. Also provide support for high-arched feet with underpronation (excessive outward rolling of the foot). See neutral training shoes


    For people with low-arched or flat feet and moderate overpronation (excessive inward rolling of the foot). See stability training shoes

    Motion control

    Shoes feature stabilizing technologies for people with severe overpronation. See motion control training shoes

    Good to know

    Stability and motion control add-ons are uncommon for workout shoes and are never present in CrossFit or weightlifting footwear. They are mostly found in walking shoes where the gait is easier to correct.

  • Price
  • Weight
    Men: 9.9oz


    Training footwear typically weighs between 200g and 300g per shoe to accommodate agile workouts. Minimalist trainers go as low as 150g, while weightlifting shoes can go as high as 500g.

  • Width
    Men: Standard
    Women: Standard
  • Release date
    Jul 2014
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Expert Reviews

Experts are training geeks, who post reviews at youtube, directly at RunRepeat or at their own websites. Each expert is categorized from level 1 to level 5 based on expertise. See stats on expert reviews and how we calculate scores here.

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90 / 100 based on 8 expert reviews

  • 85 / 100 | RIZKNOWS

    They worked as advertised and I think they're gonna last a really long time and they're probably the best CrossFit shoes out there right now, but just barely.

  • 100 / 100 | WOD Magazine

    The addition of a more rigid heel cage gives you that extra support and stability during squatting and lifting.

  • 90 / 100 | As Many Reviews As Possible

    If you’re looking for the definitive fitness shoe, this is it.

  • 90 / 100 | Garage Gym Planner

    The Reebok CrossFit Nano is designed specifically for CrossFit and this is what they do best. For CrossFit enthusiasts, they are the best option.

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Updates to Reebok CrossFit Nano 4.0

  • The Reebok CrossFit Nano 4.0, as the name implies, is a shoe created specifically for CrossFit. It is equipped with shoe technologies that provide support, steadiness, and agility, assisting the wearers’ throwdown at the box.
  • The trainer shares a striking resemblance to its predecessor, the CrossFit Nano 3.0 thanks to the Duracage protective cover. Though the design of the structure is more refined in the CrossFit Nano 4.0. The most obvious difference is the absence of the Reebok Vector logo on the lateral side of the Duracage in this new iteration. Instead, the Delta logo is more prominent, along with the CF74, a nod to the year 1974, the year CrossFit was born.
  • Other similarities between the two models include the F48 and the S55 compounds that make up the dual-density midsole. Both materials absorb shock, but the forefoot is crafted to be more flexible to promote movement while the back delivers stability.
  • As for the outsole, it utilizes rubber which provides traction on most surfaces. It wraps up at the midfoot, forming the RopePro protection which assists in rope climbs. The underside also features the Metasplit flex grooves that facilitate natural foot movements.

Reebok CrossFit Nano 4.0 size and fit

The Reebok CrossFit Nano 4.0 is designed for both men and women. It comes in US sizes 5 to 11 for men and 5 to 9.5 for women. As for the width, it is only available in medium which is D and B, for men and women, respectively. Though the upper is made of mesh, which is soft and has a bit of a stretch, the Duracage structure prevents it from overly stretching.


The underside of the Reebok CrossFit Nano 4.0 is protected by a rubber compound manufactured to be durable to withstand training on rough surfaces. It features a tread pattern that promotes multi-directional traction. It also wraps up the medial and lateral sides of the midfoot, forming the RopePro structure that bites the rope, assisting wearers to ascend and descend cables.

Examining the bottom of the footwear, there are noticeable ridges called the Metasplit. They mimic the phalanges of the foot, allowing it to bend and move naturally.


The midsole of the Reebok CrossFit Nano 4.0 is made up of two compounds. The forefoot uses the F48 cushioning unit that not only attenuates shock but also promotes flexibility. The midfoot and the heel are lined with the S55 material which also absorbs shock, has a high energy return, and is solid to keep the rearfoot steady during plyometrics, lifts, and squats.

The low-profile cushioning platform also has a 4-mm heel-to-toe drop. This construction allows the wearer to feel planted to the ground and feel stable during dynamic movements.


Protecting the top of the foot from outside elements is the open weave mesh upper. This material is soft and pliable, allowing the foot to move. It is also breathable and keeps the foot chamber well-ventilated.

The upper is reinforced with the Duracage which is made of polyurethane (PU), a type of plastic that is sturdy. It creates a wrap that protects the quarters during rope climbs. It extends to the back of the shoe, creating a heel cup to keep the rearfoot steady. The Duracage is also seen at the forefoot, forming a toe bumper that protects the toes during burpees.

The lacing system at the midfoot integrates with the Duracage. When the laces are cinched, the lateral structures are drawn in, amplifying the support for side-to-side movements.

Further securing the locked-down fit is the plush tongue and collar. The tongue evenly distributes the pressure created by the laces to keep the foot comfortable and secure inside the shoe. As for the collar, not only does it prevent chafing at the Achilles, but also prevents the back of the foot from sliding out while training.