Working Dog MatDesigned to withstand everything a long day in the field can throw at them. All the benefits of our signature orthopaedic mattress, but now encased in a military grade, water resistant, 1000 Denier Nylon olive green outer with sturdy brass zips. The cover is designed to be wiped clean but can be machine washed at 30c if required Available with an optional, attachable, wool fleece topper for optimum comfort. Particularly important for the working dog,