Arvano Bike Backpack, Cycling Hydration Backpack with 2L Water Bladder, Lightweight MTB Rucksack, Bicycle Bag for Hiking Skiing Pack Men Women

Lightweight & Durable Construction: Designed with a 16L capacity for the perfect balance of lightweight comfort and durability. Ideal for hiking, biking, running, MTB, snowboarding, and any outdoor adventure. Reasonable Capacity Storage: Multiple pockets that give you all the space you need to store your various necessities. The small front pocket stores wallet and keys. In addition, detachable pouch can store cellphone and other smaller items, allowing you to quickly find what you need Hydration Bladder Included: The taste free water bladder (2 Liter/70z) made from medical grade materials, BPA free. With an ergonomic handle for easier refilling, and an on/off valve that makes preventing leaks simple. Large 4-inch (10cm) opening for easy cleaning, you can add ice cubes for an even cooler drink Comfortable Back System: The ergonomic design makes your back more comfortable, the soft, breathable mesh pad on the back keeps your back cool and dry. Adjustable backpack shoulder, chest and waist straps to ensure the right fit, keeping the pack centered and fixed, so the bag will not bounce while riding Versatility Features: Arvano bike rucksacks with reflective strips for safe riding at night, and with an emergency whistle on the strap for use in emergency events. With mesh cover in the mini pocket at the bottom of the backpack to hold your helmet. With rain cover, waterproof, to be used in heavy rain