The Dog Helios ® 'Trail-Barker' Multi-Surface Water-Resistant Travel Camping Dog Bed is composed of a PU Coated Polyester-Cotton and Nylon fabric. The PU Coating has repelling properties similar to a Lotus leaf. The inner-lining contains a Lightweight quilted film that features Blackshark Technology that is Impermeable, Waterproof, Windproof and Breathable. Perfect for the Outdoors. Additionally, this Dog Helios sleeping bag has perimeter zippers that zip open to double the surface area. Furthermore these specialized zippers amazingly connect to additional pet beds of this style for an even larger surface area. Features a Nylon handle-bar on the top and can be rolled up. Includes a carrying bag. Perfect for travel. Get Outdoors with Helios Dog! Available in Multiple Colors. SIZING MEASUREMENTS (INCHES) L x W x H - 39.4 x 25.7 x 4