Mardingtop 45L Hiking Backpack for Travel Climbing Camping Outdoor Sports MATERIAL- Polyester , Breathable mesh shoulder straps ,Water-resistant Polyester as the fabric do not allow water to easily penetrate.(NOT INCLUDED A RAIN COVER) CAPACITY- 45 Liter (2,746 cube inches); High quality professional backpack for camping, hiking and climbing, designed to be comfortable and functionally versatile. MULTIPLE FEATURE- SBS zipper, Reflective strip design, higher safety factor for night; more humane, more convenient for travelling. VERSATILE- Ultra-light, Ultra-durable, Ultra-awesome daypack.Perfect for hiking,occasional travel,day-to-day use,pack beach accessories, suitcase alternative, storing diapers,college, camera compartment, camping , etc. LIGHTWEIGHT - Weight only 2.4 lb (1.12 kg). Product Dimensions:22.4 (H)x 11.8 (L)x 7.9 (W) inches (57 x 30 x 20 cm).