DURABLE MATERIAL: Constructed out of high quality water-resistant polyester, the backpack is tear-proof, offers enormous storage space, and protects your laundry from water, dirt, and odor Machine washable. ULTRA LARGE CAPACITY: Measure 27''34'' per piece This size is big enough for holding 3 loads of laundry for each, storage in college dorm or family use. ADJUSTABLE STRAPS & EASY CLOSURE: The laundry backpack features two adjustable shoulder straps that provide effortless shoulder carry aimed to lessen the headache of maneuver heavy loads by hand, and to free up your hands to perform other tasks There is a spring lock that slides down the drawstring to preventing spill of personal items. MULTIFUNCTIONAL USE: Laundry storage bag for your clothes, underwear,socks, suitable for home, university dormitory, apartment, laundry room, camping, travel, indoor/outdoor as well as you want.