Fosinz Pet Dog Saddle Bag Pack Bag Adjustable Backpack Outdoor Hiking Camping Training Travelling with Small Medium & Large Size for Dogs SIZE AND COLOR:This dog saddlebag has many adjustable choices,3 sizes small medium & large size, colors(Black/Orange/Red/Blue) for you to choose.All the detailed size is shown in our picture.Please refer to our size chart before you choose them.If the size your measured is in-between two sizes, please select the larger size. MATERIAL AND STYLISH BUCKLE STRAP:Made of 600D oxford cloth high-grade,strong and durable.The newly designed buckle is stylish.Its strips are adjustable also. CONVENIENT POCKET:It has two convenient pockets in each side provide enough room for your own disposable dog food, water,house keys and cellphone when walking jogging hiking travelling outside. RUBBER MESH AND HANDLE:The rubber mesh on our dog backpack is strengthened by two strip breathable for comfort.The handle on this backpack helps lift dog up over obstacles when you are outward hounding or training,practical and stylish. APPLICATION:It is useful and suitable for guide dogs, police dogs and other working dogs for transport food and drink from supermarket,vegetable market and travel.