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Free UK delivery · Free 30-day returns · sportium.co.uk@gmail.com





Every order ships free with tracking. Timings are on our delivery page.
Email us with your order number within 30 days of delivery and we will send a prepaid returns label. Refunds go back to your original payment method.
Tell us the sport, your level and the measurements that matter at sportium.co.uk@gmail.com and we will help you choose.
Maelstrom Hydration Backpack is a lightweight 2L running vest that stores water, essentials and tools for long runs, hikes, and rides while keeping liquids insulated and hands free.
This compact hydration pack blends breathable, low-weight nylon with an insulated sleeve for the included 2L PEVA bladder, delivering a practical solution for outdoor exercise. Designed to perform as both a running vest and a hiking hydration backpack, Maelstrom’s pack balances storage, comfort and safety features so you can stay hydrated without slowing down.
The pack uses an aluminum-lined bladder sleeve that helps reduce heat transfer and resists leaks during motion. Coupled with a durable PEVA bladder and secure hose ports, it’s built for reliable on-the-go sipping.
Yes — the vest is engineered for universal comfort with adjustable chest straps and a ventilated back panel to reduce heat build-up. Lightweight materials and a contoured shape keep the pack stable across activities.
Storage is organized across four pockets that separate small items from the main bladder compartment, and exterior clips hold a helmet securely. Reflective strips increase visibility when you’re active near roads or in low light.
Built to serve as a running hydration vest, day hiking pack, or cycling hydration backpack, it adapts to many outdoor pursuits and body types. The lightweight, modular design makes it suitable for men and women who want simple, dependable hydration.
Who is this for: The Maelstrom Hydration Backpack is aimed at active athletes and weekend adventurers who need a compact, dependable hydration system. If you run long distances, bike commutes, day-hike, or want a hands-free way to carry water plus essentials without bulk, this pack is designed to provide stability, cooling for fluids and practical storage in a lightweight package.
Q: Is the water bladder dishwasher-safe?
A: No — rinse with warm soapy water and air-dry. Use a bottle brush or cleaning kit for deep cleaning.
Q: Can the pack secure a bike helmet?
A: Yes — external clips are designed to hold a cycling helmet securely while you ride or hike.
Delivery: free and tracked to addresses across the UK, with no minimum spend. We email your tracking link as soon as your order is dispatched; timings are on our delivery page.
Returns: 30 days from delivery to return an unused item in its original packaging free of charge, with a prepaid label. This is on top of your 14-day legal right to cancel, and your Consumer Rights Act protections for faulty goods.
Damaged or wrong item? Email us a photo at sportium.co.uk@gmail.com and we will replace or refund it.
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