80l Outdoor Large Tactical Climbing Travel Backpack Hook and Loop Molle Systerm Hiking Trekking Camping Rucksack Sports Training Bag. Features: hook and loop design, side strap design, alloy zipper, reflective strip design, drawstring, double-sided bag, zipper bag at the bottom, back stretch cotton, breathable mesh design. Specifications: Material: Oxford, Applicable gender: unisex, Functions: wear resistance, lightening, ridge protection and safe reflection at night, Applicable scenarios: outdoor sports, mountain climbing, hiking, camping and traveling.