Firm and Not Easy to Fall Off: Buttons on the shoulder strap are designed to be securely attached to the dog's back. Application: The pet backpack snack storage bag is specially designed for small dogs, the shape is beautiful and the pattern is exquisite. High Quality: The pet backpack snack storage bag is made of high grade material, durable, wear-resistant and washable. Widely Use: Perfect for everyday walk, weekend party and service dog use, or just making your pet look its best. Easy to Open and Close: Large capacity, zipper design, easy to open and close.