Made of high quality 600 Denier Nylon. There are three sizes. Features: Ultra lightweight design comfortable for pets. Comes with extra padded strap for over-the-shoulder. Mesh windows on all sides for ventilation and pet visibility. Reinforced mesh to prevent damage from pets’ nails or teeth. Large front zipper opening for quick access. Easy to clean of just rinse with water. Inside leash tag provides added security. Have a mesh pocket in the back to hold essentials. Free Shipping.