Exercising outdoors during summer can be challenging. You need to stay hydrated to stay out of trouble. The DolfinPack is a multi-sport hydration rack that keeps you comfortable and hydrated. It is made with a stretchy neoprene fabric.
DolfinPack could prove useful for stand-up paddleboarding, running, surfing, and other activities. It has 1.5L capacity. Costs under $45 at this time.