Description * In black 600d* material all double stitched for durability * Easy clean fabric * Top pocket clear PVC slip pouch * Inside lined with foilene for heat retention * Temperature holds for up to half an hour * Fits most delivery bike boxes * Two carry handles designed to balance out the weight when its been carried The denier of the fabric. A denier is how thick each individual strand of material weighs (actually the gram weight per 9000 meters). The higher the density the stronger and thicker the fabric
