The Herschel Supply All Season 29L Backpack is part of the new Outdoor Equipment line, engineered for heavy outdoor use and everyday function. It features custom All Season fabric and an intuitive design that's perfect for snowboarding and winter activities with a built-in hydration system and an internal tool organization system for your gear. For security and stability on the move, it includes a removable waist strap and a sternum strap with a rescue whistle.