Hyperflex - 7mm Cryo Split Boot Size:7 it has stood the test

it has stood the test of time

Featuring a cord made from natural bio-resin

40% Polyester

or shapes that rely on pinched rails or long rail lines to do the heavy lifting

The bottom contour consists of a deep single concave that runs into a pronounced double concave

Hyperflex - 7mm Cryo Split Boot Size:7 it has stood the testBuilt to take on the frozen North Atlantic, Great Lakes and Pacific Northwest. The CRYO is the real deal of winter gear. Built using the same materials used in the Hyperflex CRYO winter suits series. Features: 100% lined with Fire Fleece the same heat retaining lining used in the CRYO 6 5 and 5 4 winter suits. Fusion welded seams. Square toe box design Locking internal skin entry cuffs. Dual axis instep strap allows for maximum torque and comfort