MEC Alpine Ally Jacket - Women's


MEC Alpine Ally Jacket - Women's

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Show Description

Ticking classics in the Bugaboos or new routing in the Coast Range, you need to move fast where good conditions are fleeting. This minimalist shell features deep pockets where you can stash accessories for quick access. The hood can be adjusted for coverage, mobility, and to give you clear sightlines of the route and encroaching clouds. An upgrade to laminated Pertex nylon improves its convective venting and overall breathability.

  • 3-layer Pertex Shield + is treated to shed water and taped through the seams for full waterproof protection.
  • Clean, stitch-free construction is light and offers unrestricted movement.
  • Helmet compatible hood has 3-way adjustments (left, right and front to back).
  • Chin guard prevents chafing.
  • Underarm zips provide venting options.
  • Full front zipper backed with storm flap protects from harsh conditions.
  • Pockets are positioned high to accommodate a harness. Mesh-lining assists with venting during hardworking ascents.
  • Zippers are very water-resistant, but not waterproof, so we don't recommend storing items inside the pockets that could be damaged if they get wet.
  • Velcro® cuff tabs and articulated elbows improve overhead functionality.
  • Left and right-side toggle adjustable hem for fit adjustments on the fly.

Tech specs

Show Tech specs
Ideal for Alpine climbing and mountaineering
Type Waterproof-breathable
Technology Pertex Shield +
Construction 3-layer
Face fabric 30-denier nylon
Lining/backer Nylon
Fabric waterproof rating

The standard test for waterproof fabrics uses a standing column filled with water. The figures given are the water column height. A rating of 3,500mm or higher can be considered waterproof. The higher the rating, the more durable the waterproof fabric will be over time.


Waterproof garments use waterproof-breathable technologies and are fully seam-taped. Water-resistant garments use waterproof-breathable technologies but their seams are not taped. Water-resistant garments repel water and protect against wind but are not made of waterproof fabric.

Waterproof with fully taped seams
Fabric active breathability

The rate at which a waterproof breathable fabric expels moisture when the inner surface is moist from perspiration. Values under 8,000g/m2/24h provide low performance, 20,000g/m2/24h provide moderate performance and values over 30,000g/m2/24h provide high performance.

Venting Underarm zips
Pockets 2 handwarmer
Length Below hip
Durable water repellency

Usually referred to as DWR. A treatment made to fabrics that causes water to bead and run off instead of soaking through.

Made in China