"Amphipod® Profile-Lite High Five K Belt 16 ounce: The Amphipod® Profile-Lite High Five K Belt 16 ounce is a unisex hydration waist pack designed for runners and athletes who need reliable access to water and gear during training runs and longer road efforts. Built around a 16-ounce water bottle secured in an insulated thermal sleeve, this running belt keeps your water cool during warm-weather outings while staying low-profile around your waist. The large expandable zip pocket fits oversized smartphones like the iPhone Plus, so carrying your phone no longer means leaving other essentials behind.The Jett-Lock™ cap on the water bottle gives you quick, one-handed access to hydration mid-stride without breaking your rhythm. The insulated sleeve and expandable pocket work together to handle both hydration and essentials in a single, organized carry system that won't bounce or shift as you run. Whether you're heading out for a daily training run or tackling a longer weekend effort, this belt keeps what you need within easy reach.Why Our Fit Experts Love It""I grabbed this belt for a longer weekend run and appreciated how easy it was to pull the bottle out mid-stride thanks to the Jett-Lock™ cap. The expandable pocket handled my oversized phone without any awkward bulk around my waist."" - Michael, Road Runner Sports Fit Expert, Seattle WAWho It's Best ForThe Amphipod® Profile-Lite High Five K Belt 16 ounce is best for runners and active athletes who want a compact hydration solution for daily training, long runs, and road running. It suits anyone carrying a larger smartphone who needs quick bottle access without stopping. If you prefer to stay organized and hydrated without the bulk of a larger pack, this waist pack delivers the storage and hydration access you need. VIP Family members can take the Profile-Lite High Five K Belt 16 ounce for a 90-Day test drive with our Perfect Fit Guarantee."