Flagship of the Responsiv range. The Responsiv 12L Race Vest is an ergonomic and lightweight trail running pack. You can pack your essentials for most runs and races in lightweight comfort. This race vest has been seen on the podiums of many classic 100-mile races around the world.

We are always looking to improve, but here we are reaching perfection according to feedback from athletes. The Responsiv 12 has been an ongoing development for years. Firstly 8, then 10, then 12 and now the V2 updated Responsiv 12. Each time evolving to an improved version. We have added accessible storage pockets and this V2 version is directly compatible with our Trail Quiver.

Useable from 2 to 12 litres this race vest has amazing versatility. 4 compression cords on the rear stabilise the load or give an additional pole storage option, the 2 stretch stash and 1 zipped pocket on the front can take handfuls of your chosen energy and you can carry as much hydration as you should reasonably need. We have added an accessible zip rear pocket if you need more storage. The monofilament mesh harness distributes load evenly for comfort without any thick padding that absorbs moisture and adds weight. The elasticated chest straps and FreeLock micrometric dials give the ability to perfectly tailor fit and stop the dreaded bounce. Our updated front pole holder design is easier to use on the move.

- Polyester monofilament mesh for better breathability and durability

- Stretch fabric for stability and comfort

- Adjustable Freelock® micrometric buckles for a perfect fit

- Race Vest with 9 pockets

- Front pockets: 2 bottle, 2 stretch, 1 zip

- Rear pockets: Main pocket (hydration compatible) with internal zip security, 1 zip accessible on the move, stretch pocket

- Total volume of 12 litres

- Front pole holder system

- Twin chest strap design

- Reflective details front and rear

- Compatible with Trail Quiver

- Delivered with 2 x 600ml EazyFlask

- 65% Polyamide

- 35% Polyester

- Wash at a temperature not exceeding 30°C

- Do not tumble dry

- Do not use fabric softener

- Do not iron

- Do not dry clean

COMFORT

Body hugging race vest design, sticks to your back like a limpet!

Twin elastic chest straps give freedom to breathe while at the same time avoiding bounce.

The vest part of the pack uses highly breathable monofilament mesh, allowing heat and perspiration to escape.

PERFECT FIT ADJUSTMENT

The freelock micrometric dial adjustment system on the sides of the pack allow you get a perfect fit, even on the move, as softflasks on the front empty as you drink the dials can be turned to maintain perfect tension. Set your front straps to the width you want, then use the dials to adjust fit.

ACCESSIBLE STORAGE

With a total of 9 pockets, 6 that can be reached on the move, you can store lots of items to hand, 2 for hydration on the front, 2 stretch storage for food and more, 1 zipped front and 1 zipped lower rear for secure items. The main rear compartment is hydration compatible for a reservoir and there is an internal zipped security pocket. The external stretch rear pocket can easily hold a damp jacket and more. Plus pole holders front and rear and the ability to use our TRAIL QUIVER for additional storage. This is a truly versatile 12L trail running pack.

ECO-RESPONSIBLE

In line with our commitment to environmental responsibility, the fabric of this product meets the standards of the Oeko-Tex certification. STANDARD 100 by OEKO-TEX® is one of the world's best known labels for textiles tested for harmful substances.