The UltraFlask 600 flask fits easily in most hydration vest, belt or pack pockets
Soft material conforms to any pocket for a comfortable carrying experience
Flexible design shrinks as you drink, reducing water movement on the run
High-flow bite valve auto-seals after each sip, eliminating annoying drips
Includes two cap sets: one with a removable bite valve mounted directly to the cap and one with an adjustable drink tube that can be cut to a custom length
Large 42mm opening lets you fill the UltraFlask easily with ice and drink mixes
Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity
Can be frozen or filled with hot water (max temp 60° C / 140° F)
Top-rack dishwasher safe
Safe and reliable, 100% BPA & PVC free
The HydraPak Ultraflask 600ml is an ultra-light flask that holds more so you can go the distance. Its soft material allows it to fit snugly in most vest pockets and it shrinks as you drink to minimize water movement.
There are a range of Royal Mail and DPD carriage options, to choose from during the checkout process, these will be appropriate for the order weight, size and Postcode. An estimated delivery date will also be displayed with each option available.
We aim to dispatch all orders within 24 hours, you will receive an email confirming your order has been dispatched and this will be followed by another from the courier with more tracking information.
Orders packed over weekends and Bank Holidays are not collected from us until the following working day.
We currently only deliver within the United Kingdom, Northern Ireland, Channel Islands and Isle of Man.
Royal Mail Large Letter 48 (proof of delivery) - £1.99
Royal Mail tracked 48 - £2.99
Royal Mail Parcel tracked 24 - £3.99
DPD Next working Day delivery - £5.99
DPD Saturday Delivery Under 10kg - £11.99
DPD areas outside of ‘mainland uk’ – from £12.99
Please note that once an order has been placed, we are unable to change the address entered at checkout.
Contact us for more information regarding payment and security