The Scruffs Expedition Box Beds are produced using a heavy-duty, 600-denier fabric, providing a robust, durable outer cover. The reverse side of the fabric is coated with a 100% water-resistant backing to prevent the ingress of water. The smake backing is applied to the bed's non-slip base. For improved support, the box beds are constructed using a one-piece design. The centre cushion of the bed forms an integral section, maximising the bed's strength and durability. The beds are filled with a 100% recycled green-fibre fill with unmatched cushioning, resilience, and insulation characteristics.