Waterproof 90L Night Cat hiking backpack is made of green and black polyester fabric. It has a 1.3kg lightweight design with padded shoulder straps, thick back cushions, and a padded adjustable waist belt. The bag includes compression straps, trekking pole lashings, bottom hanging straps, and an emergency whistle on the chest strap. It features smooth zippers with pullers and quick-switch buckles.