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The Alpha half-zip pullover for men is a technical layer designed to support outdoor enthusiasts in all their pursuits, from snowy trails to rocky climbs, ski slopes to forest runs. Equipped with Polartec® Alpha™ insulation, it delivers intelligent thermal regulation that adapts to your pace. Unlike traditional insulation, Alpha™ adjusts its breathability based on your level of exertion: it retains warmth when you're still and releases heat as soon as you move, while actively wicking away moisture. The result is consistent comfort without overheating. Its lightweight, lofty fibers and mesh core provide active breathability, moisture resistance, and fast drying, even during high-output activities. Stretchy, compressible, and easy to pack, it slips effortlessly into your bag and follows you everywhere, without compromise.
Technical sheet
Features
Zipper(s)
Cuffs
Additional features
Materials
Certifications
Measurement
Back length
Fit
Clothing - Men
Ready-to-wear tops | Outerwear - Men
| S | M | L | XL | XXL | |
| Chest | 94 | 101.5 | 109 | 118 | 128.5 |
| Waist | 76 | 84 | 91.5 | 99 | 106.5 |
| Hips | 91.5 | 99 | 106.5 | 114.5 | 122 |
| Sleeves | 82 | 84 | 85.5 | 88 | 91 |
| Inseam | 81.5 | 81.5 | 84 | 84 | 84 |
Ready-to-wear tops | Outerwear - Men
Chest
Waist
Hips
Sleeves
Inseam
How to take measurements
1 - Sleeves
Place your hand on your hip, elbow bent at 90 degrees. Start behind the neck at the middle and reach the shoulder, then go down to the wrist.
2 - Chest Size
Place your arms by your sides, inhale and measure the circumference. Make sure to go between the shoulder blades and around the largest part of your chest while keeping the tape parallel to the ground.
3 - Waist Circumference
Measure the narrowest part of the torso — where you are able to bend or usually wear your pants. Keep the tape parallel to the ground and append the length of one finger to the measurement.
4 - Hip Circumference
Stand up straight, feet placed together, and measure at the thickest part while keeping the tape parallel to the ground.
5 - Inseam
Measure pants that fit you well between the crotch and the waist. Use pants with a standard rise versus low-rise pants. This measurement is rounded to the nearest centimeter/inch.
Size charts refer to body measurements rather than product measurements.
Product measurements may vary between articles.
Please read the product description for more details.
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