Membrane Solutions 23oz Collapsible Water Container Bottle Squeezable Pouch for Hiking Camping Travel Emergency 4 Pack

1. Compatible with Various Filter Straws 23 oz (650 ml) collapsible water container designed to quickly fill from municipal water sources. Compatible replacement for most water filter straws with 28mm screw caps, ideal for use as a squeezable filtration system. 2. Food-Grade, BPA-Free Material Made from impact-resistant, food-grade BPA-free material. Durable enough to withstand accidental drops, perfect for outdoor activities and sports. Recommended liquid temperature range: 32℉ (0℃) to 140℉ (60℃) to ensure longer container lifespan. 3. Collapsible Lightweight Design Lightweight at under 1 oz when empty. Volume reduces by 50% when folded, with a compact height of just 5.3 inches. Easily fits in pockets, backpacks, or gym bags for convenient hydration anywhere. 4. Portable Leak-Proof Unique push-pull cap design minimizes spills and leakage. Includes a carabiner for easy attachment to bags or backpacks, providing quick access and secure carrying. 5. Measurement Scale for Convenience Stands upright when full for easy use. Side measurement markings allow you to track water intake. Ideal for outdoor enthusiasts and useful as an emergency water storage solution.