PREMIUM MATERIALS – All of our TrailMax 500 Series products are constructed from 1680-denier ripstop nylon & have an outer shell with a PVC water-resistant coating. They are reinforced at all stress points with nylon webbing & have double-stitched seams. FUNCTIONAL DESIGN – This carrier is insulated & padded with closed cell foam & has a nylon liner to allow the water bottle to easily slide in & out. A drawstring top keeps the water bottle secure & protected from dirt and weather. The front pocket is a handy place to store keys, cell phone (less than 6¼” top to bottom) or a snack. DIMENSIONS: 9¾" x 5" x 4½" STAINLESS STEEL BOTTLE – Our 1-liter water bottles are made from high quality food-grade stainless steel that is totally free of BPA & other toxins. The wide mouth design fits most water filters. GREAT for TRAIL RIDES – These are compatible with most western & endurance saddles. An adjustable strap buckles through the saddle pommel opening & saddle strings can tie through a D ring for secure attachment. ORIGINAL TRAILMAX DESIGN by OUTFITTERS SUPPLY – We design, field test & regularly use the equipment that we offer & we routinely introduce new products to better meet the needs of trail riders, packers & outfitters.