Material: Lightweight woven fabric with breathable mesh back panel, waterproof PEVA-lined front mesh pocket, adjustable shoulder straps and reinforced hanging loop, foldable into a compact built-in pouch.Size: Main bag measures 29.1×13 inches with 40-liter large capacity; folded pouch hits 6×8 inches for compact stowing inside luggage.Occasions: Holds piles of garments for dorm, camping and cruise trips; hangs on doors as stationary storage, separates damp swimwear and dry apparel to avoid cross transfer.Care: Rinse thoroughly after carrying damp items, then hang wide open to air dry. Avoid prolonged exposure to intense heat to protect sealed waterproof seams.