The exterior is 600D Oxford fabric with a waterproof PU coating; it features a breathable mesh lining and an EPE foam cushioning interlayer. The adjustable webbing shoulder strap includes a foam shoulder pad and a zinc-alloy spring-loaded safety clasp. The opening is secured with a drawstring made of reflective polyester cord. A removable, rigid base insert is included. The construction features double-needle flat stitching, with bar-tacking at stress points.



