GUYI 1.0L Collapsible Water Filter Bottle, 1000ml White, 0.1µm Hollow-Fiber, Ultralight & Leakproof

The GUYI 1.0L Collapsible Water Filter Bottle is an ultralight, packable drinking system with a 0.1 micron hollow-fiber filter that reduces sediment, chlorine taste and odors to give you clearer-tasting water on the go.

Designed for outdoor days, commuting, and travel, this bottle combines a high-flow, tool-free filter with a soft, space-saving silicone body. It collapses small when empty, resists leaks with a self-sealing nozzle, and filters fast enough to support active use like hiking, cycling, and trail running. Lightweight and simple to maintain, it’s aimed at anyone who wants safer-tasting water without heavy, rigid gear.

How fast and effective is the filter?

The GUYI uses a 0.1 micron hollow-fiber membrane that removes fine sediment, reduces chlorine taste and most visible particles, while maintaining a high flow. You’ll get water at better-than-bottle-shop taste with filtering speeds designed for active use.

• 0.1 micron hollow-fiber membrane for fine particulate reduction
• Flow rate exceeding 1 liter per minute under normal use
• Capable of treating up to approximately 1,000 liters before replacement
• No pumping required — gravity or squeeze feeds water through quickly

Will it fit easily into my pack or jersey?

The silicone body collapses to a compact roll when empty, freeing up space in packs and pockets. Its 1.0L capacity gives a useful volume when needed, yet it packs down to a fraction of a rigid bottle’s footprint.

• Collapsible design compresses for minimal storage volume
• 1.0 liter capacity when expanded for day trips and rides
• Lightweight construction ideal for ultralight setups
• Flexible shape slips into side pockets, jersey pockets, or small compartments

How durable and leakproof is the bottle for travel and rough use?

Constructed with sturdy silicone and a reinforced filter assembly, the bottle withstands typical outdoor handling. The nozzle features a self-sealing valve that prevents leaks when the bottle is closed and tossed in a pack.

• Robust silicone body resists punctures and kinks during normal use
• Self-sealing drink nozzle ensures a 100% leakproof seal
• Filter housing and connections designed to hold up to trail wear
• Simple cap and nozzle for dependable opening and closing on the move

What maintenance does the filter need on the trail?

Keeping the GUYI filter working is quick and tool-free—no pumps or special brushes required. A fast rinse or swish between sources restores flow and helps prevent clogging during multi-day use.

• EZ-clean membrane requires only swishing and shaking with clean water
• No backflushing tools or replacement adapters needed in the field
• Clear setup and care guide included for first-time use
• Simple maintenance keeps performance consistent trip after trip

Who is this for? Outdoor enthusiasts, cyclists, day hikers, and travelers who want lightweight, compact hydration with built-in filtration will appreciate this bottle’s balance of speed, portability, and easy upkeep. It’s also useful for commuters and anyone who prefers to reduce reliance on single-use bottled water while keeping their pack weight and bulk low. Avoid using it with chemically contaminated sources—follow local guidance and product instructions for safe use.