Soft Flask Bottle (500ml)
Hydration that moves with you, not against you. The UltraX Soft Flask delivers 500ml of slosh-free fuel in a featherweight, compressible design that fits seamlessly into your vest. Sip on the fly with a leakproof bite valve, then refill in seconds with the wide-mouth top, no spills, no wasted time. Whether you're racing or grinding through long training days, this flask stays light, quiet, and out of the way until you need it most.
Not sure? See size guide.
Product Features
This vest features smart storage to keep your essentials close:
- AirPods/earbuds pocket
- Water-resistant phone pocket
- Dedicated gel pack compartment
- Secure key pocket
- Front pocket fits a 500ml soft flask (included free)
- Large rear pocket holds a hydration bladder or extra gear
Fit & Sizing
The UltraX Pro features a unisex fit with dual-action adjustable chest and waistband straps, allowing for a secure, bounce-free feel no matter the distance. Available in two sizes, it’s designed to suit all ages, shapes, and experience levels — from first-timers to seasoned runners.
| SwiftVest Size | Female Size (UK) | Male Size (UK) | Chest Size (Inch) |
|---|---|---|---|
| XS - S | 4 - 10 | XS | 24 - 32 |
| M - L | 12 - 18 | S, M, L | 32 - 44 |
Materials & Build
Crafted from a premium neoprene and nylon blend, the UltraX offers durability, breathability, and comfort for long sessions. It’s built to handle wet weather, rough trails, and everything in between.
Pairs well with
Soft Flask Bottle (500ml)
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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