The XS Scuba Pony Pac Harness allows divers to carry pony bottles when a large air supply is not needed. This light weight, compact system is a good alternative for boaters, yachters, and dive professionals. Whether you need to clean your pool at home, inspect your boat prop, or maybe quickly check a lobster dinner. The XS Scuba Pony Pac offers a new harness that is superior to the old style hardpack design. Comfortable and easy to adjust, this product delivers the ultimate pony harness setup.