EU Shoe Size 37 38 39 40 41 42 43 44 45 46 47
UK Shoe Size 4 5 5.5 6.5 7 8 8.5 9.5 10.5 11 12
USA (M) Shoe Size 4.5 5.5 6 7 7.5 8.5 9 10 11 11.5 12.5
Length (mm) 240 246 253 260 266 273 280 286 293 300 306

Fit:
In environments with water your footwear should be a snug fit, rather than loose fitting. This is so that on slippery surfaces or uneven terrain your shoe moves with you, providing a better footing and grip. Our Water Shoes are designed with a snug fit, however if you are inbetween sizes we recommend that you size up.