The 2 pcs hiking bag set contains a hiking backpack and a crossbody sling chest bag. The Outdoor Backpack with 40L storage space(20.5inch x 13inch x 7.1inch). The sling bag is 6.3 inch x 2.4 inch x 13 inch., Water Resistant & DURABLE: Waterproof Material included. SHENHU camping backpack is made of extra thick, tear-resistant, water-resistant and anti-abrasion polyester fiber. All stress points are reinforced with bar tacking to increase its longevity., Breathable Mesh Padding: Stylish DayPack with Soft multi-panel ventilated padding makes maximum back air flow and support. Breathable and adjustable shoulder straps relieve the stress of shoulder are the perfect hiking backpack for outdoor sports. Ergonomically designed provides body comfort even when pack is completely full. Keep it cool even in summer., THIS ITEM IS NOT INTENDED FOR USE BY CHILDREN 12 AND UNDER.