MY PET for Dog Backpack Bagpacks Pack Back Adjustable Saddlebag Hiking Training Travel Waterproof Style with Reflective Strip Accessory Blue This adjustable dog backpack is ideal for dogs weights from 20 to 60 pounds,adjustable saddlebags system for a customized fit. 100% Brand new and high quality soft nylon,durable. Convenient pockets for carrying food, water, and gear for you and your pet when you're walking,travelling or camping etc.This dog backpack with weights is good for you and your pet outdoor hiking. Season:All Seasons. Balanced assistance handle helps lift dog up and over obstacles when you are outward hounding.Backpack with reflective strip is cool and enhance visibility. This backpack can hold water bottles, poop bags, toys, collapsible dog bowls, first aid, weights, etc. Ergonomic padded spine and breathable mesh harness support contours to the dog's back.This padded dog saddlebag makes your dog comfortable. Medium Size, Stomach 19.6"-25.6",Neck 19.6"-24.4",Bag Length 6.69"* 9.4".All the detailed size is shown in our picture.