MEC Hydrofoil Stretch Jacket - Women's
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Description
Lightweight and packable, this fully seam-taped jacket is perfect for activity in wet climates or where you expect foul weather. The Hydrofoil Stretch Jacket's waterproof Pertex Shield construction is ridiculously breathable. 40-denier nylon promises durability and 4-way stretch that’s soft and supple, never crunchy. A helmet-compatible hood and pockets that sit above a hipbelt or harness make it ideal for alpine missions and backcountry trips. Best of all, we’ve kept it amazingly affordable so you can budget for longer climbing trips and extra days on the hill.
- Made of 40-denier nylon with a 2.5-layer Pertex Shield waterproof-breathable laminate.
- Fabric has built in 4-way mechanical stretch to move with you.
- Exterior is treated with a DWR (durable water repellency) finish to shed precipitation.
- Fully taped seams for maximum wet-weather protection.
- Fully adjustable hood with reinforced brim is helmet-compatible.
- Raglan sleeves for comfort under backpack straps.
- Underarm vents use water-resistant Uretek zippers
- 2 zippered outer pockets are set high out of the way of a harness or hipbelt.
- Articulated elbows for good range of motion.
- Hook-and-loop–adjustable sleeve cuffs.
- Elastic drawcord at bottom hem.
- Cut for layering over light to mid-weight garments.
- Length provides extra coverage, and fit works for climbing.
Fit guide
Technical garments, designed for specific activities have features that aren’t always adaptable to general use. For example, cycling clothing is longer in the back and arms. Activity aside, the fit of MEC clothing falls into these categories:

Our next to skin fit that contours the body for no distractions

Our close to body fit with a low profile silhouette for ease of movement

Our standard, slightly off body fit for unrestricted comfort

Our roomy, off body fit for maximum comfort and easy layering
Sustainability
Tech specs
Show
Tech specs
Weight | 350g (Small) |
---|---|
Ideal for |
|
Type | Waterproof-breathable |
Technology | Pertex Shield |
Construction | 2.5-layer |
Face fabric | 40-denier 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. |
20,000mm |
Waterproofness
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. |
15,000g/m2/24h |
Venting | Underarm zips |
Pockets | 2 external chest |
Windproofness
A windproof garment does not allow any air to permeate the fabric. A garment with windproof panels has panels of fabric that are totally windproof, but the rest of the garment may not be windproof. A wind-resistant garment resists some wind, but not as much as a garment that is windproof. |
Windproof |
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. |
Yes |
Hood |
|
Additional feature(s) | Wind flap behind zipper |
Product sustainability | Bluesign® Approved Material |
Made in | China |
XXS | XS | S | M | L | XL | XXL | |
---|---|---|---|---|---|---|---|
0 | 0 - 2 | 4 - 6 | 8 - 10 | 12 - 14 | 16 - 18 | 20 - 22 | |
Bust
(cm)
(in.)
Bust
(cm)
(in.)
Measure fullest circumference, keeping tape up under arms and across shoulder blades. |
78.85 31 | 81.5 - 84 32 - 33 | 86.5 - 89 34 - 35 | 91.5 - 94 36 - 37 | 98 - 101.5 38½ - 40 | 105.5 - 110.5 41½ - 43½ | 115.5 - 120.5 45½ - 47½ |
Natural waist
(cm)
(in.)
Natural waist
(cm)
(in.)
Measure at the narrowest circumference of your waist. |
64.5 25½ | 66.5 - 68.5 26¼ - 27 | 70.5 - 72.5 27¾ - 28½ | 75 - 77.5 29½ - 30½ | 81.5 - 85 32 - 33½ | 90 - 95.5 35½ - 37½ | 101 - 106.5 39¾ - 42 |
Hips
(cm)
(in.)
Hips
(cm)
(in.)
Stand with feet together and measure at fullest circumference. |
86.5 34 | 89 - 91.5 35 - 36 | 94 - 96.5 37 - 38 | 99 - 101.5 39 - 40 | 105.5 - 109 41½ - 43 | 113 - 118 44½ - 46½ | 123 - 128.5 48½ - 50½ |
Arm length
(cm)
(in.)
Arm length
(cm)
(in.)
Bend elbow gently, then measure from centre of back of neck out to point of shoulder, down to back of elbow, and forward to wrist. |
75 29½ | 74.5 - 76 29¼ - 30 | 77 - 77.5 30¼ - 30½ | 78 - 78.5 30¾ - 31 | 79.5 - 80.5 31¼ - 31¾ | 81.5 - 83 32 - 32¾ | 84 - 85.5 33 - 33½ |
Petite arm length
(cm)
(in.)
Petite arm length
(cm)
(in.)
Bend elbow gently, then measure from centre of back of neck out to point of shoulder, down to back of elbow, and forward to wrist. Petite size garments are also proportionally shorter overall. Not all styles are available in 'petite'. |
71 28 | 70.5 - 72 27¾ - 28¼ | 73 - 73.5 28¾ - 29 | 74 - 74.5 29¼ - 29¼ | 75.5 - 76.5 29¾ - 30 | 77.5 - 79 30½ - 31 | 80 - 81.5 31½ - 32 |

- Bust
- Measure fullest circumference, keeping tape up under arms and across shoulder blades.
- Natural waist
- Measure at the narrowest circumference of your waist.
- Hips
- Stand with feet together and measure at fullest circumference.
- Arm length
- Bend elbow gently, then measure from centre of back of neck out to point of shoulder, down to back of elbow, and forward to wrist.
- Petite arm length
- Bend elbow gently, then measure from centre of back of neck out to point of shoulder, down to back of elbow, and forward to wrist. Petite size garments are also proportionally shorter overall. Not all styles are available in 'petite'.
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Body Fit
Our next to skin fit that contours the body for no distractions
-
Slim fit
Our close to body fit with a low profile silhouette for ease of movement
-
Regular fit
Our standard, slightly off body fit for unrestricted comfort
-
Relaxed fit
Our roomy, off body fit for maximum comfort and easy layering