Made from super tough 1000 denier fabric, not only is the D1000 washable, Teflon coated, UV treated, flea-free, re-fillable AND water repellent it also looks so good you might need two - one for inside & one for outside! The cover is sealed with a completely hidden durable zip & the inner is also zippered to allow for easy washing (ideally suited to our Laundry Bag!) & fresh filling. We'd never call any of our beds 'indestructible' (they're for dogs after all) but this bed is tough with a capital T!