-Super waterproof: not just a little bit, waterproof polyester material can make it enjoy well waterproof effects.
-Reflective night: the reflective strip behind the cover makes you safer at night
-Compact and lightweight: ultra-lightweight and super-small shrink volume make it easier for you to carry.
-Easy to use: adjustable elastic band makes it easier for you to use
-Many sizes: three sizes for different packs
S size (for 30-40 liters backpack)
M size (for 40-50 liters backpack)
L size (for 55-65 liters backpack)
XL size (for 70-75 liters backpack)
2XL size (for 80-85 liters backpack)