15L Unisex Riding Backpack Super Light Anti Splash Breathable Bicycle Climbing BagSpecification Color 8 colors as the pictures shownMaterial Tear resistant polyester fabricSize 45 24 15cmGender UnisexFeatures According to human engineering design soft and fit tightly to the bodyUse rainproof polyester fiber no problem for light rainSuitable to use under different weather and different environment small size but large capacity make youenjoy the tripPackage included 1 X Backpack