RESPONSIV 15L
RESPONSIV 15L - Noir / XS-Men / S-Women is backordered and will ship as soon as it is back in stock.
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Delivery and returns
Delivery and returns
- Free delivery from €100. Learn more
- Free exchanges. Return conditions
Size Guide - Running Packs & Hydration Vests
Ultralight Running Pack & Hydration Vest
Choose your size according to your measurements in centimeters. Values in inches are indicated next to them.
| Men's Size | Women's Size | Chest circumference | Height |
|---|---|---|---|
| XXS | XS | 78–84(30.7–33.1") | 42(16.5") |
| XS | S | 85–90(33.5–35.4") | 43(16.9") |
| S | M | 91–96(35.8–37.8") | 44(17.3") |
| M | L | 97–102(38.2–40.2") | 45(17.7") |
| L | XL | 103–108(40.6–42.5") | 46(18.1") |
| XL | XXL | 109–114(42.9–44.9") | 47(18.5") |
Responsiv Running Pack & Hydration Vest
Choose your size according to your measurements in centimeters. Values in inches are indicated next to them.
| Men's Size | Women's Size | Chest circumference | Height |
|---|---|---|---|
| XS | S | 78–90(30.7–35.4") | 37(14.6") |
| S | M | 90–96(35.4–37.8") | 38(15.0") |
| M | L | 96–102(37.8–40.2") | 39(15.4") |
| L | XL | 102–114(40.2–44.9") | 40(15.7") |
| XL | 2XL | 114–120(44.9–47.2") | 41(16.1") |
Dynamic Running Pack & Hydration Vest
Choose your size according to your measurements in centimeters. Values in inches are indicated next to them.
| Men's Size | Women's Size | Chest circumference | Height |
|---|---|---|---|
| S | M | 84–96(33.1–37.8") | 39(15.4") |
| M | L | 96–102(37.8–40.2") | 40(15.7") |
| L | XL | 102–114(40.2–44.9") | 41(16.1") |
How to take your measurements properly
Here are the essential markers to measure correctly.
Head circumference
Around the head, above the ears, without tightening too much.
Chest circumference
Around the chest, at nipple level (tape measure perfectly horizontal).
Waist circumference
At the narrowest point of the torso (without sucking in your stomach).
Hip circumference
At the widest point, at the hips / pelvis.
Sleeve length
From the top of the shoulder to the wrist, arm stretched out and naturally relaxed.
Leg length
From the size to the ankle bone, following the leg without pulling too hard.
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Pole holder
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Micrometric Adjustment
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Compatible with hydration bladder
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Unisex
Description
Description
Responsiv 15L: the essentials of trail running, without compromise
The new Responsiv 15L trail pack is designed for trail enthusiasts seeking effective and user-friendly gear. With its 15-litre capacity, it offers a perfect balance between lightness, space, and comfort, ideal for your long outings, ultras, or mountain adventures.
New for 2026, it now comes in a new blue shade and features a redesigned waterproof pocket, made to effectively protect your gear no matter the conditions.




































