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Responsiv 18 L (2x 600 mL)

174.95 87.47€ incl. VAT
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With a volume that is neither too big nor too small, discover the big brother of our classic Responsiv 10L! The Responsiv 18L backpack / vest is a bag designed and manufactured in France.

Thanks to revolutionary technology, made via laser cut, thermosealing and its foam back, you will enjoy a considerable comfort during your trail races!


Designed for performance, discover our Lazerdry range. This Responsiv 18L model is a backpack / vest designed for your ultra-trails. Its versatility and lightness will make it your favorite companion!

In addition, a water bladder (up to 2.5L) can be inserted in the main pocket.

Adaptable to all morphologies, the bag is adjusted by means of a micro adjust loop system


Main Fabric: 100% Polyester.

Pocket Fabric : 75% Polyester // 25% Elastane.


Secured zip pocket on the back.

Backpack/ Vest with a total of 8 pockets

A large main 18L compartment compatible with a 1,5L water hydration pack.  

2 pockets on the straps comptabile with our Eazyflasks "Press-to-drink" and RGo bottles.

2 pockets ideal for your energy gel and bars.

2 pole holder positions (chest and back).

2 micro adjust buckles personalise the fit

2 chest straps with integrated whistle

Delivered with two 600 ml Eazyflasks "Press-to-drink" .

Benefits and Protection

Perforated 3D foam back for comfort and breathability.

Ripstop fabric for increased strength and lightweight.

An integrated safety whistle on one of the chest straps

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