Extra cool barefoot boots designed to keep their feet warm. No cold day will stand a chance! Veeeery resistant, veeeery breathable, and veeeery easy-to-clean microfiber ;) Recycled felt lining to keep feet protected and cozy. Removable thermal insole made of recycled felt to keep feet warm. Pure pleasure. Technology and design come together in a non-slip rubber sole with top-tier SUPERFLEX tech for natural foot flexion. Zip zap! Super easy hook-and-loop fastening. Guaranteed support for any foot! Inner heel and toe bumpers with a ping-pong effect that bounce the shoe back into shape. Designed with a physiological last that respects healthy foot development. Made in Spain and endorsed by SEBIOR podiatry experts.