Bike Cover Frame Protection - Stickers Accessories Velo Sock Bike Manufacturer of covers for all types of bikes, Velo Sock is a Latvian start-up that promises to keep your floors, walls and the inside of your car safe from any type of residue, after a bike ride in the mud or in the rain. Velo Sock is made of a flexible material composed of 90% polyester and 10% spandex, and is compatible with all bikes with length 1.60m to 2m.