Tanluhu 673 15L Hydration Running Backpack Climbing Bag Description: Pack your hydration bladder with Tanluhu sports backpack which is essential for your bike rides or running. This backpack provides you to carry everything you need for every type of fitness such as hydration bladder and other necessities. The ventilated harness and padded mesh back panel keep the bag secure to your body while helping you remain cool and comfortable. Features: Provide you to carry everything you need for every type of fitness 15L large capacity with hydration bladder compartment with tube holes design to conveniently keep your body hydrated for a day. It is easy to get stuffs in and out. Make your back feel pretty comfortable Ventilated back for maximum breathability that quickly allows the heat spread out and sweat resistance makes your back feel comfortable when you carry the backpack for a long time while the adjustable and breathable harness to relieve the weight on the shoulder. Won't bounce and shift Adjustable and flexible chest strap and waist strap to perfectly fit your body size and effectively avoid it shaking while fitness. Emergent whistle design Designed with a whistle at the chest strap for an emergency using to keep you safe or warn others, more practical and multifunctional. Water resistant material Constructed with lightweight and anti-scratch polyester with high-quality pull string zippers, wear resistant, durable and long-using. Various using applications Suitable for youths and adults to short distance outdoor traveling, hiking, mountain climbing, cycling, riding and other outdoor sports. Parameter: - Capacity: 15L - Adjustable shoulder strap: 47 - 81cm / 18.5 - 34.25 inches - Waist circumference: 91 - 116cm / 35.83 - 45.67 inches - Adjustable chest strap: 16 - 30cm / 6.3 - 11.81 inches - The maximum loading weight: 15kg Note: the hydration bladder in the picture is not included. FAQ:Questions: Is there a place for trekking poles? Answer: Yes. There are two trekking pole straps at the front bottom of the backpack. Questions: Does it have a hole for the hydration bladder hose? Answer: Yes. There are two holes on both two shoulder straps.   Application Position: Back,Waist Gender: Men,Women 0.6050 Package weight: 0.663 kg Product Size(L x W x H): 22.00 x 22.00 x 48.00 cm / 8.66 x 8.66 x 18.9 inches Package Size(L x W x H): 29.00 x 24.00 x 8.00 cm / 11.42 x 9.45 x 3.15 inches Package Contents: 1 x Running Backpack