2L Collapsible Water Bladder — Compatible with Sawyer Water Filter Straw & 28mm Thread Purifiers, Lightweight BPA-Free L

Compact, Filter-Compatible Collapsible Water Bag — Wide-Mouth + 28mm Screw Neck for Straw Filters

Quick overview This lightweight, collapsible gravity-fed water bag works seamlessly with popular straw filters (Sawyer Squeeze, Sawyer Mini, Sawyer Micro, Membrane Solutions, HydroBlu Versa Flow and other 28mm soda bottle-style straw filters). Designed for fast filling, easy cleaning, and dependable field use, it delivers safe drinking water wherever you go.

Filter compatibility — use with your existing straw filter - Directly compatible with Sawyer Squeeze, Sawyer Mini, Sawyer Micro and Membrane Solutions straw filters. - Fits HydroBlu Versa Flow and most straw filters that use a 28mm soda bottle-style screw neck. - Allows efficient filtration on the go — perfect for hikers, campers, and emergency preparedness.

Dual-mouth design for speed and versatility - Slider-sealed wide mouth: fill quickly from streams, pumps, or jugs; ideal for scooping and adding ice. - 28mm screw neck: attach straw-style filters for fast, reliable purification. - Switch between filling and filtering modes without extra adapters.

Lightweight, collapsible and ready for adventure - Packs down flat to save space in your pack or emergency kit. - Easy to carry and store for hiking, camping, travel, and survival situations. - Designed for rugged outdoor use while keeping gear weight to a minimum.

Safe, durable materials - Made from food-grade, BPA-free materials to keep drinking water safe. - Built for repeated outdoor use with ultra-durable construction that resists punctures and wear. - Maintains water quality without leaching taste or chemicals.

Convenient, user-focused features - Tethered slider prevents loss when opening to fill or clean. - Wide-mouth slider makes cleaning and drying fast and simple. - Thoughtful design reduces hassle during filtering, refilling, and maintenance.

Who it’s for - Backpackers and day hikers who want a compact, filter-ready water reservoir. - Campers and overlanders needing easy fill-and-filter capability. - Emergency planners and outdoor enthusiasts who require safe, storable drinking water.

What you get - A filter-compatible, collapsible gravity water bag with slider-sealed wide mouth and 28mm screw neck for straw filters — built for portability, safety, and easy maintenance.