SPGOOD Bike Backpack 20L/25L/30L Waterproof Breathable for Men and Women with Rain Cover Helmet Motorcycle Sports Cycling Hiking Camping MTB

Large capacity: main compartment + front compartment = 20L/25L/30L, made of waterproof and tear-resistant nylon material, which is more robust and durable, ultra-light and durable. Breathable and comfortable: the back is equipped with mesh EVA to improve airflow. The shoulder straps are specially filled with mesh material to relieve stress and provide comfort. Adjustable: adjustable shoulder strap/chest strap/waist belt to increase the stability of the mountain bike backpack. Upgrade design: hydration system compatibility, on the shoulder strap there is a hidden hydration system for hydration bladder (hydration bladder not included). You can drink water while you are cycling. The backpack also contains front pockets, side pockets, mobile phone pockets, rain cover, helmet cover, and a multifunctional design to meet your different requirements. Multiple choices: the bicycle backpack has 20 L, 25 L and 30 L, 8 colours to choose from.