Step up your hydration game with the Orange Mud UltraFlask 500 ml Soft Flask With Locking Lid — crafted for runners, trail runners, ultra‑athletes and outdoor adventurers. This 17 oz (500 ml) soft flask is engineered to conform to your carry system, reduce water slosh, and deliver secure hydration access while you move. The ultra‑soft body fits in vest, belt or pack pockets without bulk; the anti‑slosh shrinking design keeps your gear feeling stable; and the wide 42 mm cap and silicone bite valve let you sip easily, even on the go. Built from rugged 0.25 mm TPU and HDPE, it's 100% BPA/PVC free, washable, freezer‑safe and suitable for warm fluids up to 140°F (60°C). At just ~1.4 oz (40 g), it gives you performance without the weight penalty. Whether you're training for an ultra, hitting the trails, or simply logging miles in the heat, this soft flask delivers the comfort, durability and hydration support you need.