With less than 50gr., OTSO's Soft Flask is collapsible and has a capacity of up to 500 ml. It complies with all safety regulations for the consumption of liquids deposited inside. Very easy to use, it is equipped with a bite valve. With a simple suction, you are guaranteed a sufficient supply of liquid whenever you want to drink. As it is collapsible, it requires very little space and therefore can be stored anywhere in our sports equipment. Durable and leak-proof thanks to its valve system. It is ideal for outdoor sports: trail, running, climbing, trekking, skimo, mountain biking, ...
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