Overview
Support, stability and enveloping fit in an all-round hydration hero. Our best-selling hydration vest is back with a new design for enhanced stability, fit & versatility. Fine-tuned for demanding endurance races and runners, the Adv Skin 12 ensures easy access to hydration, long-distance comfort and freedom of movement. This 12-liter version is ideal for longer trails (60km+).
Reviews
Men's Advanced Skin Packs
Calculate your own measurements, then select your product size
ORDER SIZE | CHEST (INCH) |
XS | 32-35 |
S | 34.5-38 |
M | 37.5-40 |
L | 39.5-42.5 |
XL | 42-45 |
ORDER SIZE | CHEST (CM) |
XS | 81.5-89 |
S | 88.5-96 |
M | 95.5-102.5 |
L | 101.5-108.5 |
XL | 108-115 |

- Chest: Measure around the chest horizontally at the widest point
Women's Advanced Skin Packs
Calculate your own measurements, then select your product size
ORDER SIZE | CHEST (INCH) |
XXS | 23-32 |
XS | 32-34 |
S | 34-35.5 |
M | 35.5-37.5 |
L | 37.5-40 |
ORDER SIZE | CHEST (CM) |
XXS | 76-81.5 |
XS | 81-86.5 |
S | 86-90.5 |
M | 90-96.5 |
L | 96-102.5 |

- Chest: Measure around the chest horizontally at the widest point
BENEFITS
Easy Hydration
Designed for rapid, hassle-free access to hydration with our new soft flasks that slide into the front pockets and won’t move around no matter how hard you run.
Freedom of Movement
With a SensiFit™ design that wraps around you and new “Y-shaped” construction to distribute the weight, as you fly along the trail.
Maximum Versatility
With adjustments, generous storage and multiple pockets, including a large tunnel one on the back and zipped one inside. Plus, compression laces on the side.

FEATURES
Sensifit™
The construction uses stretch, breathable fabrics and lightweight adjustments to optimize fit and stability.
Quick link
This sternum strap enables you to adjust your pack quickly on the fly. The elastic makes it easier to breathe when you pick up the pace.
Y SHAPE construction
The back of the pack is built in the shape of a Y with strategically placed stretch and supportive fabrics to stabilize the weight in the main compartment.
LOAD MANAGEMENT
Side compression laces adjustable
HYDRATION
Reservoir compartment, Compatible with soft flasks 500ml, Compatible with 2L reservoir, 2 x 500ml ULTRA flasks included
SHOULDER STRAPS
3D Airmesh shoulder straps
POCKETS & COMPARTMENTS
1 back main zipped compartment, 2 front stretch pockets, 2 front flask pockets, 1 back pocket with 2 side access, 2 front stretch zipped pocket, 2 shoulder stretch pockets, 1 internal pocket with key holder
OPENING & CLOSURE
YKK zipper
CARRYING SYSTEM
Custom quiver compatible, Multiple pole holder solutions, Pole holder elastic loops
MISCELLANEOUS
Whistle
DETAILS
Materials & Maintenance
41
Do Not Bleach, Do Not Dry Clean, Do Not Iron, Hand Wash Cold (30°C), Do Not Tumble Dry
41 x 29 x 1
M
12
247
323
BENEFITS
Easy Hydration
Designed for rapid, hassle-free access to hydration with our new soft flasks that slide into the front pockets and won’t move around no matter how hard you run.
Freedom of Movement
With a SensiFit™ design that wraps around you and new “Y-shaped” construction to distribute the weight, as you fly along the trail.
Maximum Versatility
With adjustments, generous storage and multiple pockets, including a large tunnel one on the back and zipped one inside. Plus, compression laces on the side.

FEATURES
Sensifit™
The construction uses stretch, breathable fabrics and lightweight adjustments to optimize fit and stability.
Quick link
This sternum strap enables you to adjust your pack quickly on the fly. The elastic makes it easier to breathe when you pick up the pace.
Y SHAPE construction
The back of the pack is built in the shape of a Y with strategically placed stretch and supportive fabrics to stabilize the weight in the main compartment.
LOAD MANAGEMENT
Side compression laces adjustable
HYDRATION
Reservoir compartment, Compatible with soft flasks 500ml, Compatible with 2L reservoir, 2 x 500ml ULTRA flasks included
SHOULDER STRAPS
3D Airmesh shoulder straps
POCKETS & COMPARTMENTS
1 back main zipped compartment, 2 front stretch pockets, 2 front flask pockets, 1 back pocket with 2 side access, 2 front stretch zipped pocket, 2 shoulder stretch pockets, 1 internal pocket with key holder
OPENING & CLOSURE
YKK zipper
CARRYING SYSTEM
Custom quiver compatible, Multiple pole holder solutions, Pole holder elastic loops
MISCELLANEOUS
Whistle
DETAILS
Materials & Maintenance
41
Do Not Bleach, Do Not Dry Clean, Do Not Iron, Hand Wash Cold (30°C), Do Not Tumble Dry
41 x 29 x 1
M
12
247
323