Okay runners, listen up - this hydration belt actually solves the annoying bounce problem! The 45-degree bottle holder design means your water stays put no matter how fast you're moving. It fits up to a 27oz bottle (not included, sorry!) and has this clever adjustable strap that fits waists from 236in to 44in. The main pocket is roomy enough for your phone (up to 6-inch screen), plus there's a special inner pocket to keep your keys from scratching anything. Love running with music? There's an earphone outlet so you can jam while you jog. And get this - the reflective design makes night running way safer by lighting up like crazy under headlights. The anti-theft zipper buckle is just icing on the cake. Weighing only 56 ounces, you'll barely notice it's there until you need that quick water break. Seriously, whether you're training for a marathon or just doing your daily 5K, this belt keeps you hydrated without the annoying sloshing and bouncing that drives every runner crazy. The material is durable but breathable, so no sweaty back situations. It's the perfect companion for those long summer runs when dehydration is a real concern. Plus, the blue color is actually pretty stylish as far as fitness gear goes. Your hydration game is about to level up big time with this bad boy!