Ultra Flask Speed 500Ml 2-Pack - Collapsible Soft Flask Water Bottle for Hydrati

300ml 400ml 500ml Soft Flask TPU Folding Collapsible Water Bottle Outdoor Sport Traveling Running Hydration Pack Water Bag Vest - AliExpress

Salomon Soft Flask 500ml Blue

250ml 500ml 750ml TPU Soft Flask Water Bottle Ultralight Folding Collapsible Water Bottle Running Hydration Pack Waist Bag Vest - AliExpress

HydraPak UltraFlask Speed 500ml 2-Pack (500 ml/17 oz), Malibu Blue & Bite Valve Replacement Sheath - for Hydration Reservoir Soft Flask - 2 Pack, Clear (A181) : Everything Else

Perfect for the campground or base camps, the collapsible HydraPak Expedition 8 L is a durable, lightweight, large-capacity solution for water storage. It weighs just 9 ounces but carries up to 270 fluid ounces of water! The BPA-free and PVC-free container is constructed of highly-durable abrasion-resistant TPU laminate with RF-welded seams for bolstered durability. Internal baffles give the container freestanding structure when filled. Its in-use dimensions are 14.8' x 7.8'.

Hydrapak - Expedition 8 L

Black Diamond Soft Flask W-MX 500 ml

Soft Flasks

500ML Foldable Silicone Soft Flask Water Bottle Outdoors Camping Traveling Sport Running Jogging Hydration Bladder Pack Vest - AliExpress

HydraPak SkyFlask