These 4mm socks are specifically designed to provide thermal protection while enabling superb freedom of movement making them ideal for open water swimming use.

Features:

100% Thermotech Xtend Neoprene: Flexible, lightweight, super hydrophobic external lining that has excellent multi-directional stretch combined with a flexible quick dry thermal lining

Dura Flex sole: Anatomically structured fit with great durability, protection and comfort

Strata Neoprene: Embossing channels in the neoprene on the top of the foot improve the flow of water

Future Fit 3D: A new construction technology that enables the form of the sock to hug the contours of your foot for ultra sensitive feel and increased warmth

Glued and Blindstitched seams: A watertight method of construction that results in superior warmth and maximum comfort

Minimal Panel Design: Strategically positioned seams reduce drag and improve comfort

True Thickness