What Our Gearhead(R) Experts Are Saying:"The Rail Hip Pack is the perfect minimalist setup for quick rides. It sits close to the body for great stability and breathes well, even when I'm hammering uphill. The side pockets are clutch for snacks, and I love that I can grab my phone one-handed without slowing down. It's small, light, and dialed for efficiency."We travel light but ride far with the Thule Rail Hydration 0. 5L Hip Pack. Designed for stability, breathability, and access on the move, this compact hip pack keeps our essentials right where we need them. Its low-profile fit stays secure even on rough descents, while the ventilated back panel ensures cool comfort when the tempo rises. Inside, organized pockets neatly stash tools, nutrition, and small accessories, while side jersey pockets make mid-ride fueling a breeze. The structured phone pocket allows one-handed access behind the back-perfect for trail maps or quick photos on the go. Reflective details and a light attachment loop add safety when the sun sets, making the Rail Hip Pack our go-to companion for quick rides, daily commutes, and after-work spins.