Dog Helios® Boulder Trek Travel Dog Mat Wilmer Vilchez Streams of emerald green and Streams of emerald green and cobalt blue bring elegant energy to a set of six tequila glasses from Mexico's Javier and Efrén In the center 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 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