Dog Hiking Backpack 1) Tough 600 denier nylon fabric 2) 5 Size - ... 3) 4+ Colors Outward Hound Quick Release Dog Backpack Dog Hiking BackpackThis custom designed backpacks easy to remove or reattach during ... -100L3355-127XL3864-166Colors: Black, Red, Blue, Pink, Camo etc. Dog Hiking Backpack