Xcel Drylock Split Toe Wetsuit Booties are made from a heat-retaining ecofriendly thrtmocarbon, recycled fiber linking made of bamboo, and charcoal infused fibers and recycled fibers.,It’s drylock system is engineered for a seamless drylock ankle seal.,Flexible, lightweight sole.,Glued and blindstiched, sealed taitex seams,Pressure bonded velcro strap and pull loop = no sewing through neoprene,100% lightweight ultra-stretch: quick drying, ultra soft neoprene