Specification: ◆ Item type: sports backpack ◆ Material: waterproof nylon. ◆ Capacity: 30 l. Weight: approx. 500 g. ◆ Size: approx.48.3 x 30.5 x 20.3 cm. ◆ Color: black, red, green, light blue, dark blue. Characteristics: ● Access to hydration pack ● Small storage pockets in the outer belt ● Special hole design for water bags ● A life-saving pipe for an emergency. ● A cell phone pocket on the shoulder strap. ● Multifunctional backpack, perfect for cycling, hiking, horse riding, camping, vacation, fishing, mountaineering and so on.