OMM Ultra Flexi Flask 500ml with Straw

We're working out what we think - we'll add our view here!

OMM says:

OMM 500ml flasks are flexible and compress down in volume as you drink. Eliminating water sloshing/bouncing. Available in bite valve and straw options.

We're working out what we think about OMM's Ultra Flexi Flask 500ml with Straw, we'll add our comments here in due course.

- Reviewed by BasecampGear

• Compresses as your drink reduces 
• Slim and lightweight, easy to fill and clean
• Polyurethane (TPU) construction 
• Non-toxic plastic 
• No Bisphonol 
• No Phthalates
• BPA free

• Weight: 48g
• Volume: 500ml