ROCKBROS Convertible Waterproof Bike Rack Bag 18L Adjustable Capacity Backpack Straps Bike Floor Stand It is a thinner stretch

It is a thinner stretch moisture-wicking material

reduce skin contact surface

The bike chain lock is resettable for 10

You can hang it on the handlebar

but also protect your face from wind and sand

ROCKBROS Convertible Waterproof Bike Rack Bag 18L Adjustable Capacity Backpack Straps Bike Floor Stand It is a thinner stretchDual Form with Variable Backpack: This multifunctional bicycle shelf bag easily converts into a backpack using built in shoulder straps. The zipper allows for quick transformation, making it versatile for both cycling and carrying. Large Capacity & Adjustable Storage: The bag offers up to 18L of space, perfect for storing cycling gear. The roll opening design allows you to adjust the capacity based on your storage needs. Waterproof Design: Made with a