Soft flasks
The best trail running soft flasks and flexible water bottles are at Glisshop:
Our running gear experts have selected for you the very best in soft flasks. True mini hydration reservoirs, these flexible water bottles let you hydrate on the go and pack down to save space once empty. A real advantage for ambitious athletes who want to go the distance while staying efficiently hydrated during their run.
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Discounted Prices
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£8.71
Made from soft, durable TPU, the Glisshop Mountain Soft Flask Clear Blue hydration flask provides comfort, durability and practicality for easy hydration during your outdoor activities.
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Recommended price
£17.51
-15%
£14.87
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Recommended price
£20.15
-13%
£17.51
Ideal for your outdoor outings, the Oxsitis Ultra Flask 500 is a flexible model, with a wide mouth and a Blaster valve that allows you to take a drink or water with you.
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Recommended price
£39.51
-20%
£31.59
The LifeStraw Collapsible Squeeze Bottle 650ml Mountain Blue is flexible and compact for easy portability. Its membrane filter can hold up to 2,000 liters of water.
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Recommended price
£19.27
-13%
£16.63
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Extra 5% off
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Recommended price
£43.91
-20%
£35.11
The LifeStraw Collapsible Squeeze Bottle 1L Dark Grey is a flexible one-liter water bottle with a filtering membrane that will allow you to drink water from the rivers and lakes you find on your excursions.
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£15.75
The Flask 500 Black Orange is a 500 ml Oxsitis soft drink bottle that's lightweight, easy to fill and clean thanks to its 42 mm wide opening.
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Recommended price
£30.71
-20%
£24.55
The Hydrapak Seeker 4L Grey bladder is compact and sturdy. It features a carrying loop and hanging clips. It is compatible with 42 mm threaded filters.
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Recommended price
£17.51
-20%
£13.99
Millet's Flask 250 is a flexible, compact water bottle ideal for trail running and hiking, offering practical, discreet hydration.
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Recommended price
£35.11
-15%
£29.83
The Salomon Soft Flask 400ml/13Oz Insulate 42mm Clear Blue is a flexible and insulating water bottle, easy to fill and clean, ideal for outdoor hydration.
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Recommended price
£15.75
-16%
£13.11
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Recommended price
£24.55
-14%
£21.03
Extra 5% off
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£17.51
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Recommended price
£21.91
-8%
£20.15
INCLUDED
DAY RETURNS
Fixed costs
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Recommended price
£13.11
-20%
£10.47
Extra 5% off
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£11.35
The Flask 250 Black soft flask from Oxsitis features a soft silicone valve that ensures a smooth, safe flow.
Extra 5% off
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Recommended price
£23.67
-14%
£20.15
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Extra 5% off
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Recommended price
£23.67
-22%
£18.39
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Extra 5% off
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Recommended price
£21.91
-16%
£18.39
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Extra 5% off
-
Recommended price
£21.91
-16%
£18.39
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-
Recommended price
£24.55
-7%
£22.79
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A wide range of volumes: 250 ml, 500 ml, and even 750 ml!
Running soft flasks are available in different capacities, from the smallest at 250 ml to the largest at 750 ml. The choice of volume for your trail soft bottle will largely depend on how you plan to carry it. If you have a simple trail belt, two small 250 ml flasks balanced on each side can work perfectly. If you use a trail running vest, you can easily go for 500 ml volumes. Of course, you'll also need to choose your flask capacity according to the distance you plan to cover and the day's weather conditions.
Models perfectly compatible with trail belts and running vests
All the soft bottles available in store are compatible with the trail vests and running belts you'll find at Glisshop. If you have any doubts, don't hesitate to contact us—we'll be happy to assist you with your purchase.
All the top brands at Glisshop: Hydrapak, Source, Oxsitis, Salomon
Because hydration is a vital need in running and trail, at Glisshop we offer you the very best in trail bottles and soft flasks. All selected products are extremely practical. They feature durable bite valves and nozzles, and are made from premium materials. Special mention goes to the brand Oxsitis, born like Glisshop in the heart of the Auvergne volcanoes, which emphasizes recycled materials and over 30% French manufacturing.
High-end soft bottles with no plastic taste
Staying hydrated during a trail or a running session is great, but being able to drink quality water with no plastic aftertaste is even better. That's why at Glisshop we only offer trail flasks from leading brands that pay special attention to the plastic used. Most models are BPA-free (Bisphenol A), phthalate-free, and PVC-free, and some are even free of BPS, BPF, and PFC. This means you can drink safely all year round, avoiding all known harmful substances.
For even more options, check out our full range of bottles and nutrition in our trail nutrition and hydration section.