How to Choose a Running Hydration Vest
On Ultra Hydration Vest
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Built for longer distances, the On Ultra hydration vest includes 2 flasks and a removable dry pack. Its modular design ensures a seamless trail experience—whether racing, training or chasing the high.
Shop similar products- Includes 2 BPA-free HydraPak flasks and a detachable 5 L dry pack; back has space for a hydration bladder
- Ultralight yet tough, the breathable mesh material is tailored to provide a precise fit that stays put
- Patent-pending closure system and adjustable hem allow you to adapt the vest's placement to best suit your body
- Nonstretch materials minimize bottle bounce for a smooth and comfortable ride
- Features daisy chain loops and modular attachments for your poles or quiver bag (not included), plus a zippered card pocket on the back
- Tested and trialed by the On elite team of trail athletes
- Hand-wash only; do not tumble dry, bleach or iron
Imported.
View all On Running Hydration Vests| Best Use | Trail Running |
|---|---|
| Gear Capacity (L) | 10 liters |
| Gear Capacity (cu. in.) | 610 cubic inches |
| Reservoir Compatible | No |
| Reservoir Included | No |
| Bottle(s) Included | 2 bottles |
| Liquid Capacity (L) | 1 liters |
| Liquid Capacity (fl. oz.) | 34 fluid ounce |
| Number of Exterior Pockets | 7 |
| Weight | 7 ounces |
| Material(s) | Main mesh: 85% recycled stretch nylon/15% elastane; pockets: 82% recycled nylon/18% elastane; removable 5L pack: nylon ripstop with 1,500 mm PU coating and silicone outer finish |
| Gender | Unisex |
