🌊 I'm reposhing these surf mitts because the wristband is quite tight for me. Otherwise super warm and comfy! 🌊 From Patagonia website: For reliable warmth in winter conditions, these wetsuit mitts are made from stretchy 5mm 85% Yulex® natural rubber/15% synthetic rubber by polymer content, with 100% external seam sealing and a textured palm for grip. Best for water temperatures: 38°–48° F/3°–9° C. Made in a Fair Trade Certified™ factory.