Established in 1986 Trekitt is family owned and run. We have always been driven by our passion for wild places and mountains and have enjoyed sharing those experiences with our customers for over 30 years.

Trekitt provides top quality equipment and clothing for mountaineers, hill walkers, climbers and travellers and has grown over the years to cater for a wide range of outdoor activities. We hold large stocks of specialist clothing and equipment from the worlds best brands backed up by our award winning customer service.  We are more than a shop, we are a service for adventure, we fully understand that to get the most from your passion you need the best kit that is fit for purpose and suits you personally.  We offer expert boot and rucksack fitting services in our Hereford shop and are always happy to discuss your equipment needs, so just call us.

The Hereford shop is open Monday to Saturday from 09:00 - 17:30.

We are closed on Sundays and Bank Holidays because we value our free time and want to keep it that way.

51 Eign GateHereford Herefordshire HR4 0AB

Platypus Big Zip Evo 1.5 Litre Hydration System

Platypus Big Zip Evo 1.5 Litre Hydration System

£29.70 £33.00
10% off

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The Big Zip Evo has all the things you want from a bladder. It is made from taste-free and BPA-free plastics, it has a food-grade liner that is attached to a tough but pliable outer and a large opening in the top for easy refills. 


Season : 2019S

Code : 10859-1.5L

Weight : 0KG

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The Big Zip Evo has all the things you want from a bladder. It is made from taste-free and BPA-free plastics and a rigid centre baffle that allows for easy cleaning, drying and offers low profile support. To protect the bladder from bacteria and mould the Big Evo has embedded Silver-ion that protects clean water.

The Big Zip Evo comes loaded with features. It has a handy Pincher Grip that allows for easy one-handed filling with a secure SlideLock system that slides both directions to easily open, securely close and fill the reservoir. Have you ever had your hydration tube detach from your reservoir because you didn't secure it properly? Chances are you ended up with a soggy back and rucksack. The Big Zip Evo fixes this by having a high mounted Quick-disconnect valve - In the instance of the hose detaching, this instantly stops the flow and also offers reliable stowing. The bladder also has a leak-proof shut off valve that offers fast, easy access. The HyFLO self-sealing Bite Valve, along with new, larger 5/16" drink tube delivers a significantly higher flow rate than previous Platypus Reservoirs.

The Big Evo provides reliable and easy water storage the will fit comfortably in just about any pack. We always recommend storing Hydration Systems in the freezer when not in use to further protect against bacteria and mould growth.

  • 1.5 litre capacity
  • Secure SlideLock System
  • Handy Pincher Grip
  • High Mount Quick-disconnect
  • Leak-proof Shut-off Valve
  • Semi-rigid Center Baffle
  • HyFLO Self-sealing Bite Valve
  • Embedded Silver-ion 
  • Taste-free
  • BPA-free
  • BPS-free
  • Phthalate-free
Technical Information

Capacity: 1.5 Litres

Weight: 160g


Sizing Information

Width: 21.6 cm

Length: 33 cm 

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Platypus Big Zip Evo 1.5 Litre Hydration System

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The product I bought was competitively priced. The video demonstration of the product assisted me in my decision to purchase the item and was very informative, as it showed all of the features and the fit. I chose "click and collect" which was an efficient and quick process. I would definitely shop here again.

Amanda  •   19 Jan 2019.

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