Size Guide


Length: fit true to size
Width: fit slightly wider
If you wear a half size, go up a full size in Prototype-01 for the best fit.
Prototype-01 generally fits similar to Converse All Star and Vans Old Skool (Euro sizing).
See our detailed guide below for your best fit!

Compared to Converse All Star
Converse All Stars feel similar in length despite being 5mm longer due to their narrow toe box. Prototype-01 offers a wider, roomier toe area, a thicker, more supportive insole for a snugger feel.
Compared to Vans Old Skool
Prototype-01 shares similar length and width with Vans Old Skool, but provides enhanced volume around the toe (especially inner ball) for a more comfortable fit, particularly for higher insteps.
Compared to Nike Air Force 1 & Adidas Stan Smith
Sizing for Nike Air Force 1 and Adidas Stan Smith is comparable to Prototype-01. However, if you wear them "just-fit," our shoe might feel slightly shorter or tighter (Stan Smith is longer/narrower, AF1 is longer/wider).
Compared to Adidas Samba
Adidas Samba is shorter and narrower. Prototype-01 is a half to a full size larger than Samba.