Thermal Swim Sock Size:L Fixed headband And centered construction

Fixed headband And centered construction for maximum stability

The M17 includes:

The padding is made from fizik’s proprietary Type 2 foam formulation

Closure System:Double-adjustment ratchet and hook and loop strap for a better adjustment

whether alcohol-based or QUAT based

Thermal Swim Sock Size:L Fixed headband And centered constructionOur Zirconium liner at the foot reduces water absorption on these form fitting neoprene socks and creates an extra insulating layer. We've increased the length to reduce water entry. Textured bottom helps prevent injury to feet when walking or running on rocky surfaces. They come in handy on long transition runs too.