Exped Cloudburst Bag, 25, Terracotta/Yellow Pack: 100% Nylon with PU coating. Webbings/ binding tapes: 100% Nylon. Shoulder harness: 100% Polyester Imported 25 Liters PU coated Taffeta Nylon and TPU film lamenated Poyester base Transparent back panel window for easy use Excellent summit pack on mountain trips and great for exploring the island on a paddle adventure Shoulder straps