FunnyDogClothes Dog Diaper for Male Belly Band Waterproof and Padded Lining Reusable Washable for Small and Big Large Dogs DELIVERY TIME 2 - 4 DAYS! The dog diaper is our highest quality WATERPROOF pet diaper. Four layers of absorbent protection will keep your pet and your floors ultra-dry! No liners are required! PLEASE measure your pet and compare to the chart provided as each brand and style of pet clothing has its own sizing system. One brand size M can very well be another brand size XL! Each listing has its own unique chart and no two listing charts are the same.