The Dog Helios 'Boulder-Trek' 3-in-1 Expandable Surface Outdoor Travel Camping Dog Mat is outer-lined with a specially engineered Waterproof Short Pile dark grain fabric and inner-lined with a lightweight Polar Fleece fabric for complete comfort and protection whether camping, hiking or picnicking outdoors. The Exterior shell is designed to evenly distribute the inner filling for further added comfort and durability and is further reflectively embedded for added night safety and visibility. This unique mat expands to 3 times the surface area with 360 degree expandable zippers and doubles as either a sleeping mat or three-dimensional camping dog bed. Extremely lightweight and compact with an ear-hanging handle makes it perfect for travel and drying or hanging. Meant to withstand the extreme harsh outdoor elements. Get Outdoors with Dog Helios! Available in Multiple Colors. Sizing Guide (Inches) Dimensions: L X W X H (When Fully Expanded) 76.77 X 25.6 X 2 Features: Travel Size, Reflective Pet Intended For: Dog Measurements: 76.77 Length/Inches, 25.6 Width/Inches, 1 Height/Inches Base Material: 50% Polyester, 50% Cotton Care: Machine Wash Country of Origin: Imported