Filtration Built In. Bulk Folded Away.The Collapsible Water Bottle with Built-In Filter gives you of both worlds: the space-saving convenience of a foldable flask and the water safety of an integrated filtration system. Available in 1000ml and 2000ml sizes, this TPU bottle collapses flat when empty and expands to full capacity when you need it — all while filtering your water as you drink.Dishwasher-safe and made from food-grade TPU, it's easy to clean and built for repeated use. Whether you're running trails, hiking backcountry routes, or camping at a site with questionable water, this bottle handles it all.Specifications Feature Details Capacity Options 1000ml / 2000ml Material Food-grade TPU (BPA-) Weight 77g (1000ml) / 92g (2000ml) Temperature Range 0°C – 40°C Filter Built-in (included) Design Collapsible / foldable Cleaning Dishwasher-safe Why Choose This Filter Bottle? Built-In Filter: Purifies water as you drink — no separate filter straw needed. Collapsible Design: Folds flat when empty, saving space in your pack or vest. Two Size Options: 1000ml for day hikes; 2000ml for longer adventures. Dishwasher-Safe: Easy to clean thoroughly after every use. Food-Grade TPU: BPA- and taste-neutral for clean-tasting water. I For Trail runners and hikers who want filtration and packability in one Backpackers minimising gear weight and volume Campers at sites with uncertain water quality Travellers needing a compact, filtration-capable water bottle In the Box 1 × Collapsible Water Bottle (1000ml or 2000ml) 1 × Built-In Filter 1 × Manual