Blue Seventy's Zirconium liner at the foot reduces water absorption on these form fitting neoprene socks and creates an extra insulating layer. Longer length to reduce water entry. Textured bottom helps prevent injury to your feet when walking or running on rocky surfaces. They come in handy on long transition runs too.

Internal jersey compromised of Zirconium focused at the foot reduces water absorption and protects against heat loss
2mm Yamamoto neoprene maximizes warmth
Longer length reduces water entry