CNOC 28mm HydriamX Collapsible Flask

The CNOC 28mm HydriamX is an ultralight, extra-durable collapsible flask built for trail running, fastpacking, and backpacking. With a tapered design, 28mm filter compatibility, and boil-safe TPU construction, it’s a versatile hydration and hot-liquid solution for any adventure. Ideal for trail runners, fastpackers, and backpackers who need a reliable, filter-ready, and heat-resistant collapsible flask.

Key Features

• 28mm Standard Thread – Compatible with popular filters like Sawyer Squeeze/Mini/Micro, HydroBlu Versa Flow, and Platypus QuickDraw for on-the-go filtration.
• Extra-Durable HydriamX Material – Thicker FDA-approved TPU handles extreme temps from -17°C to 100°C, safe for hot drinks and boiling water. 
• Ultralight & Compact – Weighs just 24–34 g (350–750 ml); rolls flat when empty and tucks easily into running vest pockets.
• Tapered, Pocket-Friendly Design – Slim, contoured shape fits snugly in hydration pockets for secure, bounce-free carry. 
• Measurement Markings – Printed volume indicators on the back aid cooking, mixing, and fluid tracking on the trail. 
• Tethered Cap – Attached cap prevents loss and simplifies one-handed use during runs and hikes.