Royal Blue Columbia Hiking backpack approximate dimensions: Length: 8inches, Width: 3inches, Height: 15inches THIS BACKPACK IS NOT SUPER LARGE! Also includes: 2L/70 fl ounce Hydrapak that easily fits in the backpacks and connects through the loops for simple hydration outdoors (see last photos). If this is not wanted, it can easily be taken out from the backpack. Both are new without tags!!! Reasonable offers welcome. Bundle for deals and discounts on shipping. Happy shopping! 🤩