4.9/5.0 from +317 reviews
Hydrion Core Pack
🏔️ Ready for your first 20K
💧 Hands-free hydration, no bonking
📋 8-week plan + nutrition guide included
"Worried about leaks — three months and 15+ long runs later, not a single drop.The 8-week plan got me to my first 20K. Most structured I've ever trained."
Jake M.
"Never worn a vest before. By my second run I forgot I had it on. Used the nutrition calculator before my first 18K — finished strong for the first time ever.Didn't expect the guides to be that useful."
Emily C.
"Was comparing this to cheaper vests. The checklist and hydration guide tipped it for me.Printed the pre-race checklist for my last event — most prepared I've ever felt at a start line. Different product altogether."
Ryan B.
See it in the wild
Every run filmed by a real HYDRION customer
No scripts. No studio. Just the trail.
Why Filter Your Shower Water?
Did you know that about 85% of the US has hard water? It often carries chlorine, rust and minerals that can wreak havoc on your skin and hair.
Skin Damage
Hard water strips your skin's natural oils, leaving it dry, irritated and prone to breakouts.
Hair Damage
Contaminants like chlorine and heavy metals weaken your hair, causing dryness, frizz, and even hair fall.
Scalp Issues
The impurities in hard water do not just affect your skin - they can also lead to a flaky, itchy scalp and persistent dandruff.
🔷 FAQS 🔷
No waiting. The 4 digital bonuses land in your inbox within minutes of purchase— long before the vest arrives. That means you can start the 8-week training plan, read the hydration guide, and prep your nutrition strategy from day one. By the time the vest is at your door, you will already know how to use it properly.
The HYDRION Core Pack fits a wide range of body types thanks to fully adjustable chest and waist straps. As a general guide: S fits chest 80–90cm, M fits 90–100cm, L fits 100–110cm, XL fits 110–120cm. If you are between sizes, size up — the straps give you plenty of room to dial it in.
Absolutely. Most of our customers didn't have a race on the calendar when they ordered.The 8-week plan works just as well as a general trail base — and a lot of runners get halfway through the plan, realise they love it, and sign up for a race. The vest and the system are built for anyone running 15K or more, race or no race.
Total 10 reviews