Front view Back view Collapsed view Side view Side view of someone drinking out of the PocketFlaskâ„¢ Lever lock cap being opened with a thumb Lever lock cap being closed with a thumb Being inserted into the back of a running belt in the mountains
New
Front view Back view Collapsed view Side view Side view of someone drinking out of the PocketFlaskâ„¢ Lever lock cap being opened with a thumb Lever lock cap being closed with a thumb Being inserted into the back of a running belt in the mountains

PocketFlask 500ml

SKU: HYD-10018

Low-profile flask for running adventures. View full details
Size: 500ML

$42.99

or 4 interest-free payments of $10.74 with
Afterpay – How it works
The PocketFlaskâ„¢ is a low-profile, soft-walled flask that shrinks as you drink from it and is designed for comfortable carrying with minimal bounce in your running-vest, belt and pack pockets. Other features include an easy-to-open 28mm locking cap to prevent leaks between drinks, a high-flow, auto-seal nozzle and the ability to collapse it completely to fit in small spaces when empty.
  • Ideal size for hydration vests, belts or back pockets
  • Made of ultra-durable, abrasion-resistant TPU and RF welded seams for superior durability and elasticity
  • Soft material conforms to most pockets for a comfortable carrying experience
  • Shrinks as you drink using a high-flow, self-sealing bite valve, reducing water movement
  • Wide working temperature range (can be frozen – max temp 60°C)
  • 28mm thread
  • BPA and PVC free
  • Beyondâ„¢ Lifetime Guarantee
Average weight
37.8g
Dimensions
25 x 9cm
Material
TPU, PP, silicone, POM
Capacity
500ml

Reusable and durable: Thermoplastic Polyurethane (TPU) is at the core of every flexible hydration product HydraPak® make. They have been using it for nearly 20 years and the reason is simple - it performs better than any other material for their application. It is incredibly strong: able to stretch up to 8x its original size without breaking. Because it's so resilient, HydraPak® can use minimal material to meet their strength needs. Their hydration products are 3 to 6 times lighter than their hard plastic or stainless steel equivalents, and, as any performance athlete can tell you, weight matters. Lastly, TPU is safe and reliable. It's 100% BPA and PVC free: every one of HydraPak® products meets or exceeds the most rigorous national food safety standards in the world.

Radio frequency (RF) welding: One of the reasons HydraPak® work with TPU is it responds extremely well to radio-frequency welding, which is used to bond film or moulded pieces to one another. RF welding passes electricity from an anode to a cathode through the TPU material, exciting it on an atomic level to create extremely localised heat. Molecules in the two pieces of material bond so completely that the site of the weld is actually structurally as strong as the material around it. In addition, HydraPak® use an "overlap" welding technique whenever possible that greatly increases weld longevity and removes creases where bacteria can grow. Over our nearly 20 years making hydration products, HydraPak expertise in RF welding TPU has led the industry.

Need help? Get in touch

How long will my order take to arrive?

Standard NZ orders are sent via NZ Post Overnight Delivery. Orders placed before 2pm are usually delivered the next working day. Rural deliveries and some remote areas may take a little longer. Oversized items like large packs or tents can take 5–9 working days.

How much does shipping cost?

Shipping is free on New Zealand orders over $150. Orders under $150 have a flat $5 shipping fee. Oversized items incur an additional shipping charge due to their size and weight.

Can I return or exchange an item if it doesn’t fit?

Yes. New and unused items can be returned within 30 days for a refund or exchange, provided they’re in original condition with tags and packaging attached. If you’re unsure about sizing before ordering, our team is always happy to help. Customers are responsible for return shipping costs, but we’ll cover the freight cost of sending out exchanged items.

Can I click & collect my order?

Yes - we offer free Click & Collect from all Bivouac stores. If your item is already available in your selected store, it may be ready the same day. Some items may need to be transferred between stores and can take 3–5 working days. We’ll contact you as soon as your order is ready to collect.

Can I track my order?

Yes. Once your order has been dispatched, you’ll receive a Shipping Confirmation email with your NZ Post tracking link and details. All online orders are fully tracked so you can follow your delivery from dispatch through to arrival.

Front view

PocketFlask 500ml

$42.99

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PocketFlask 500ml
Low-profile flask for running adventures

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