★?Built-in padded sleeve:?Perfect protects laptop from bumps and falls.
★?Night security:?Reflective strip makes you visible,travelling safely at night.
★?Ergonomic design:?Soft sponge cushion,more comfort and more load bearing.
★?Strong and sturdy:?ABS material handle,better with time.Sturdy,heavy loading,12 cm wider large wheel,saving labour and time.
18 inches: 13.39" x 7.87" x 18.50" (34 x?20 x?47 CM)
20 inches: 14.17" x 9.84" x 21.26" (36 x 25?x 54 CM)
Capacity: Around 50 L
Weight: 3.3 KG (7.28 lb)
Maximum laptop size: 20"
Material: The waterproof protective cover made of waterproof coating on 1680D polyester, which protects your?back being dirty.
--LARGE & STORAGE SPACE:?Large Space Main Pocket and Cushion Laptop Sleeve provides an extra-large compartment to pack everything you need and a better protection for your devices.Additionally,there is a interior insulation bag.
--DURABLE:?Bartack Stitch provides strong and long-lasting performance with maximal weight. Also there is a durable zipper across the backpack which provides high explosion protection performance.
--TRAVEL SAFETY:?Adopted reflective strip makes you visible,travelling safely at night.
--MOST SOFTY:?Ergonomic ventilated and an adjustable S strap ensures perfect touch with human body, and provides maximum comfort.Breathable back padding and removable buckle are humanized design.