Supertrip Outdoor Extra Large Foldable Waterproof Camping Blanket Mat with Strap Sand Proof Beach Blanket Mat 57 ''x 78'' Easy to fold and carry ,the handy adjustable shoulder strap allows for easy transport,folded measures 11.8 x 9.4 x 3.9 inches Extra large size unfolded measures 57 x 78 inches & lightweight 1.9 pounds Waterproof backing prevents you from getting wet from damp lawns or surfaces and soft polar fleece made you feel more comfortable when you sitting Easy to clean,surface can be wiped slightly with warm water and mild soap; Bottom waterproof can be cleaned by damp cloth; This blanket can not be machine washed,but can be dry dry cleaned, naturally air dried and line dry in the air will be great Ideal family size for the grass, picnics, camping, sporting events and around the house with popular and classical stripe design