Training and outdoor tips, monthly
Seasonal advice and new arrivals. Unsubscribe in one click.
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.
Sea to Summit Lightweight Dry Bag 35L in sulphur yellow is a compact, roll-top waterproof storage sack designed to keep gear dry and organized across backpacking, kayaking, cycling, and travel.
Built from PU-coated 70D nylon with a durable water-repellent finish and a white interior for better visibility, this 35-liter dry bag balances minimal weight with reliable weather protection. It features a Hypalon roll-top closure, double-stitched and tape-sealed seams, and a patent-pending field-repair buckle so you can quickly fix or replace the closure in the field. With a streamlined oval base that resists rolling and a low-profile shape, the bag fits easily in packs, cockpits, or luggage while weighing just 0.26 pounds.
The Sea to Summit Lightweight Dry Bag uses robust waterproof construction—PU coating, taped seams, and a Hypalon roll-top—to keep water out during typical wet-weather scenarios. Its white interior helps you find small items quickly without rifling through the bag.
The bag’s low-profile, streamlined silhouette and oval base make it simple to stow in tight spaces and resist rolling in a kayak cockpit or pack lid. At 35 liters (closure rolled three times) and just 0.26 pounds, it provides a high capacity-to-weight ratio for lightweight trips.
Durability comes from the combination of 70D nylon, DWR finish, and reinforced welded/taped seams, while the Hypalon closure and patent-pending field repair buckle allow fast replacements without tools. Small design choices—like the D-ring and base lash loop—add practical attachment points for securing the bag to a pack or kayak.
Yes—beyond technical paddling or hiking uses, the 35L Sea to Summit bag functions as a travel organizer for clothing, wet swimsuits, or dirty gear. The white interior and roomy volume make it useful for sorting items inside larger luggage while keeping contents protected from moisture.
Who is this for? The Sea to Summit Lightweight Dry Bag 35L is aimed at outdoor enthusiasts who value ultralight gear without sacrificing functional waterproofing—backpackers, sea kayakers, bikepackers, ski-tourers, and travelers who need a reliable, easy-to-repair storage solution. Choose the sulphur yellow color for high visibility in camp or on water, and pair it with smaller dry sacks for gear organization on multi-day trips.
Q: Is the Sea to Summit 35L dry bag fully waterproof?
A: Yes—the PU-coated 70D nylon, taped seams, and Hypalon roll-top create a waterproof barrier for typical wet conditions.
Q: Can I replace the buckle in the field?
A: Yes—the patent-pending field-repair buckle is designed to be replaced quickly without special tools.
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.
Seasonal advice and new arrivals. Unsubscribe in one click.
Thanks for subscribing!
This email has been registered!
| Product | Description | Collection | Availability | Product type | Other details |
|---|