Sea to Summit Watercell X collapsible water reservoir and camp shower 6 Liter (v1), lightweight TPU wide-mouth

The Sea to Summit Watercell X 6L is a featherweight, collapsible TPU water reservoir that doubles as a dispenser and camp shower for backpacking and travel.

Designed to carry, pour, hang and dispense water with minimal bulk, the Watercell X compresses flat when empty and expands to hold six liters of potable water. Made from food-grade, abrasion-resistant TPU and RF welded seams, it’s built to survive rough handling on trails, waterways and bikes while staying free of BPA, PVC and odors. The wide-mouth screw cap accepts common filtration fittings and a multifunction spout lets you control flow or attach a shower head for rinsing gear or washing at camp.

How does the Watercell X fit into a lightweight pack or kayak?

The Watercell X folds flat to occupy almost no space when empty, and its 3D molded shape keeps it stable when full. An internal baffle reduces sloshing so it packs neatly against gear, and the semi-translucent TPU makes checking water level quick and easy.

• Collapses flat for minimal storage in pack or boat
• 3D molded form and internal baffle for stable packing and reduced slosh
• 13 x 9 x 4.2 inch full dimensions fit under sleeping pads or inside panniers
• Lightweight 6.9 oz (empty) keeps base pack weight low

Can I use this with my filter or as a shower at camp?

The wide-mouth screw opening is compatible with many industry-standard filtration systems and replacement lids, making it simple to fill and filter in place. The cap includes flow control and a shower fitting so you can switch from pouring to a gentle stream suitable for washing hands, dishes, or a quick rinse.

• Screw-top fits common filter connections and replacement caps
• Integrated flow control for measured pouring or steady stream
• Shower fitting accepts small shower attachments or tubing
• Wide mouth simplifies filling from streams, pumps or taps

How durable and easy to maintain is the Watercell X?

Constructed from food-grade TPU with RF welded seams, the Watercell X resists abrasion and will not retain taste. The internal baffle and wide mouth help with full drainage and drying, and the materials are chosen to keep the reservoir hygienic and long-lived with basic care.

• Food-grade, semi-translucent TPU resists odors and taste transfer
• RF welded seams reduce leak risk compared with glued constructions
• Wide opening enables thorough rinsing and air-drying
• Low-profile fill-handle and strong grab handles simplify handling and hanging

Who is this for? The Watercell X 6L is ideal for ultralight backpackers, kayak and paddle-sport adventurers, bikepackers and campers who need a compact, multi-purpose water solution. It suits travelers who want a dependable, hygienic reservoir that doubles as a pour dispenser and camp shower, and who prioritize reduced weight, packability and compatibility with standard filtration gear.