Carrying Heavy Water Bottles on a Hike Makes No Sense. This One Collapses.Hard water bottles add dead weight to your pack even when empty. This ultralight collapsible water bottle with built-in filter weighs just 0.073kg, squeezes flat when empty, and filters water from streams, rivers, and taps as you drink. BPA- construction keeps your water safe, and the dual filtration system removes bacteria and particulates for clean drinking water in the field. Available in 600ml, 750ml, and 1000ml sizes in Blue, White, and Green.Why Choose This Product Built-in squeeze filter → Filters water from natural sources as you drink — no separate filter unit needed Collapsible design → Squeezes flat when empty — takes up almost no space in your pack BPA- construction → Safe, food-grade materials for everyday and backcountry use 0.073kg ultralight → Adds almost no weight to a hiking pack or emergency kit Three sizes available → 600ml, 750ml, and 1000ml to match your hydration needs I For Backpackers and hikers who need to filter water from natural sources on multi-day trails Travellers who want a compact, filtered water bottle for countries with unreliable tap water Emergency kit builders who need a lightweight, filtration-capable water solution Specifications Specification Detail Sizes 600ml, 750ml, 1000ml Weight 0.073 kg BPA- Yes Filter Type Dual filtration (squeeze) Colours Blue, White, Green Variants Filter and non-filter options available What's Included in the Box 1 × Collapsible Water Bottle Built-in filter (filter variants) Refer to product images for full accessory list Frequently Asked QuestionsQ: What does the filter remove from water?The bottle uses a dual filtration system. Specific filtration ratings (e.g., micron size, bacteria removal percentage) are not specified in the listing — contact us for confirmed filtration specifications before purchase.Q: How long does the filter last before ?Filter lifespan is not specified in the listing. Contact us for confirmed filter intervals before purchase.Q: Can I use this bottle without the filter?Yes — non-filter variants are available. The filter can also be removed from filter variants for use with clean tap water.