Built with hand-laid premium rubber over 3.5mm neoprene core for a flexible, waterproof, and scent free boot. Active Fit with adjustable neoprene gusset for easy on/off and a secure fit. Features 800g of Thinsulate Ultra insulation for a comfort range of -50 to 40 degrees.

Features:

• Hand-laid rubber over neoprene
• Waterproof and scent free
• Active Fit with adjustable gusset