The Ruffwear, Singletrak Dog Pack is perfect for taking your dog on a day trip or hiking trip. This backpack features two large side pockets, a padded chest strap, and a sturdy metal frame. The pack also has two BPA-free hydration bladders with enough room for treats, pick-up bags, and a small leash. The back of the bladders are reflective for improved visibility in low-light conditions.