Reebok CrossFit Nano 4.0s

Introducing the newly-released Reebok CrossFit Nano 4.0! We want to help you get to know this extremely versatile shoe, so we’ll let you know all about the features that make it a great shoe to WOD in as well as how it compares to previous Nanos.

The Reebok CrossFit Nano 4.0 is designed with the CrossFitter in mind. This means that the shoe is designed to withstand the sport’s variety of functional movements. From the Nano U-Form, to the 2.0, 3.0, and now 4.0, Reebok has put itself up to the challenge of creating a shoe that can withstand the unknowable.

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The Nano 4.0 features a protective DuraCage and breathable open-weave mesh upper that allows the flexibility your feet need for running, box jumps, and burpees. The RopePro protection wrap will protect your toes during double unders and olympic lifts. The 4mm drop, multi-surface outsole, and shock-absorbing forefoot and heel pods mean that you don’t have to change into different shoes for your Oly Lifts (unless you really want to).


Reebok Women's CrossFit Nano 4.0 Style #: M40528Reebok Men's CrossFit Nano 3.0 Style #: V53240

The Nano 4.0 multi-surface outsole remains pretty true to the outsole of the 3.0, as shown above. It still has RopePro technology to help with rope climbs.

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The RopePro Protection Toe Wrap and DuraCage however, are both looking a little different.

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While the Nano 2.0 has DuraGrip print along the toe cap, the Nano 3.0 introduced the DuraCage upper, which offered more stability and protection for your feet while maintaining  the shoe’s flexibility. The DuraCage of the 4.0 features a finer toe grid on the toe box and a sleeker diamond-weave on the uppers. The toe wrap is also similar to the one on the Nano 3.0, with a more updated look.

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The heel cup of the 4.0 has been re-designed. It is slightly longer and leather-lined. The new design allows the shoe to cup your heel more firmly, giving you a stronger base in your heel for heavy lifts.

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One of the major differences between the 4.0 and the 3.0 is that the 4.0 is more flexible. Many customers find the Nano 4.0 on par with the 2.0 when it comes to running.  Sizing runs true to Reebok Nano sizing (usually a 1/2 size smaller than your normal athletic shoe size). Feel free to contact our customer service department if you have any further questions about sizing by calling 800-850-7463 Monday through Saturday from 9:30-6:00 pm EST or emailing .

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You can order Reebok CrossFit Nano 4.0’s at or visit our store in Norwalk, CT.

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