MagiDeal Dog Foldable Backpack Waterproof Portable Travel Outdoor Bag Pack Green XL Big dog backpack Waterproof and uv protection, lightweight, breathable material The was built strong to withstand rugged outdoor conditions, making it great for everyday use or backpacking adventures. The ergonomic padded spine support contours to the dogs back for a comfortable fit and provides weight distribution for the two saddlebags. The saddle bags offer liberal room for adventure essentials. This package is a multifunctional backpack which can be used in many occasions.