5mm Billabong FURNACE Hidden Split Toe BootsCold feet be gone! The 5mm Billabong FURNACE Hidden Split Toe Boots offers unparalleled warmth and comfort in cooler temps without compromising movement. Featuring a Graphene interior lining, which allows these boots to feel lightweight, stay warmer, and dry faster.A durable, thin, ultra flexibile sole allows for great protection and an awesome board feel.Other features include: hidden split toe, adjustable arch strap, ankle cuff to reduce cold-water flushing, and 100% welded exterior seams to keep heat in.Eco-Conscious Fabric:Upcycler pro stretch- softer, lighter, 100% recycled exterior fabricGraphene interior fabric- Billabong's warmest material to dateTechnology:Graphene-infused yarns warm up faster and hold heat longerNeoprene Foam:SMART Foam - lightest warmest foam, recycled contentExterior Seams: 100% Liquid Welded Exterior SeamsFlex arch sole designAdjustable arch strap entry system90 Day Warranty