
Hydration meets strength
Hydraflex combines your water bottle and your dumbbells into one piece of gear. Vellhaven designed it for people who don't have time to pack extra.
Two tools, one bottle
Fill it up for a satisfying weighted feel, or keep it light, either way it's ready to move with you.
Built for daily carry
The leak-proof seal means it goes straight from your bag to your workout without a second thought.
Our customers say it better than we can
Frequently Asked Questions
How much weight does the water add?
A full 550ml bottle adds a noticeable, comfortable resistance for light strength work and toning.
Is it actually leak-proof?
Yes, the sealed cap is designed to stay closed through workouts, bag travel, and daily carry.
Can I use it for grip exercises too?
Yes, many customers use it for curls, presses, and grip work in addition to regular hydration.
Is it safe to drink from?
It's made from BPA-free materials, so it's completely safe for everyday use.
How do I clean it?
The wide opening makes it simple to hand wash and fully dry between uses.
Every Vellhaven order is checked by hand
Nothing leaves our warehouse without a person looking at it first. We check the finish, test the moving parts, and pack each piece so it survives the journey to your door. That's why we not only give guarantees on our service, but also achieve outstanding ratings on platforms like Trustpilot.