10 Best Handheld Running Water Bottles 2025 in the United States

The HydraPak SkyFlask Speed is a lightweight, collapsible water bottle designed specifically for runners and outdoor enthusiasts. With a 500ml capacity, it holds enough water for short to medium runs without being bulky. Weighing just 2.7 ounces, it’s easy to carry and won't slow you down. Its thermoplastic polyurethane material is flexible and durable, allowing the bottle to collapse as you drink, saving space. One of its best features is the ambidextrous design, meaning you can comfortably hold it in either hand thanks to the soft, padded thumb loop and adjustable hand strap. This helps reduce grip fatigue since you don’t have to squeeze hard to keep it secure.

The three-layer ISOBound insulation prevents sweat on the outside, so your hand stays dry even during intense activity. The leakproof SpeedFill cap makes refilling quick and mess-free. However, since it’s made of soft material, it might not stand up well to rough handling or freezing, and because it’s collapsible, it offers less structure than hard bottles, which some might find less stable during fast runs. Also, it requires hand washing, which is typical but worth noting for convenience.

This bottle is suited for runners who want a light, easy-to-carry hydration option with good grip and quick refills. Those needing larger capacity or hard-shell durability might prefer to consider other alternatives.

The HydraPak UltraFlask Speed is a lightweight, collapsible soft water bottle designed mainly for runners and outdoor users who value convenience and easy hydration on the go. With a 600ml capacity, it strikes a good balance between carrying enough water and staying light. Weighing only 84 grams, it won't add unnecessary bulk or weight to your running vest or pack. The soft, flexible material (made from TPU, PP/POM, and silicone) allows the bottle to shrink as you drink, which helps reduce sloshing and keeps it from bouncing around during movement. It fits snugly in most hydration vests or belt pockets, and its design prevents chafing, a common issue with harder bottles.

One of its standout features is the SpeedFill cap, which allows quick one-handed opening and closing—perfect for grabbing water fast at aid stations. Plus, it comes with a customizable 42mm cap where you can switch between a straw or bite valve, making it adaptable to your drinking preference. The bottle is reusable and hand wash only, so it requires a bit of care. While its collapsible nature is great for packing away when empty, some users might find soft flasks less stable than rigid bottles for certain activities.

The grip relies mostly on the pocket or vest since the bottle itself is soft and smooth, so it might not feel as secure if held directly in the hand. The product includes a generous lifetime warranty, which adds peace of mind. This flask is particularly suitable for runners and fitness enthusiasts who want a lightweight, easy-to-access hydration option that fits well in specialized gear but don’t mind the softer feel and manual cleaning.

The FITLY Running Handheld Water Bottle is designed specifically for runners, hikers, and outdoor enthusiasts needing a lightweight and convenient way to stay hydrated. It holds 12 ounces (350 milliliters) of water, which is a moderate amount suitable for short to medium activities without adding much weight. The bottle is collapsible and made of thermoplastic polyurethane, a durable and flexible material that is also BPA and PVC free, making it safe for repeated use. Weighing very little, this bottle won’t feel bulky or heavy during your runs or hikes.

The holder is adjustable to fit all adult hand sizes comfortably, providing a secure grip that won’t slip, which is essential during active movement. Additionally, the holder includes a stretchy pocket perfect for carrying small personal items like keys or cards, so you can leave your bag behind. The design allows wearing it inside or outside the hand for personal comfort preferences.

It only fits certain FITLY soft flasks (F1 through F4) and is not compatible with the newer F5 models, which might limit future upgrades. The wide mouth makes refilling and cleaning easier, but hand washing is required to maintain it. For those seeking a practical, snug, and lightweight hydration option for running or hiking that keeps essentials close, the FITLY handheld bottle is a solid choice, especially for shorter outings rather than long endurance events.