【PERFECT CAPACITY】 22*10*5.5cm. Approx. 1L capacity. It has enough space for keys, tools, mini pump, tyre and water bottle, wallet, phone, etc. With the elastic rope in one side, you can put your bike pump. Ideal for daily riding. 【EASY ASSEMBLY】 With 3 adjustable Velcro fasteners, you can attach and remove the bag quickly and stably to the bike frame. 【DURABLE】The 210D polyester material is durable and water-repellent, providing comprehensive protection for your bike accessories. 【DURABLE DESIGN】Only 5.5 mm wide. It does not rub against your legs when riding. Weight: 98g Size: 22*10*5.5cm Capacity: approx. 1L Waterproof cap The bike bag comes with a waterproof cap on the zip and provides waterproof protection for a long life. Smooth zip The smooth waterproof zip not only makes one-handed operation easier, but also prevents items in the bag from getting wet from rain or drinks. Wear-resistant fabric Wear-resistant fabric designs make the bag with ripstop properties and high abrasion resistance, although it is not waterproof, but be more durable.