Polartec Power Grid Half-Zip Jacket - Men's
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Polartec Power Grid Half-Zip Jacket delivers breathable warmth for high-output missions
What Our Gearhead® Experts Are Saying:
"I bring the Power Grid Half-Zip on almost every trip—it’s insanely breathable, layers well under a shell, and keeps me dry even when I’m working hard. Whether I’m skinning uphill or backpacking in shoulder season, it’s one of the most reliable midlayers I’ve owned."
We count on the Mountain Hardwear Polartec Power Grid Half-Zip Jacket as a go-to midlayer for everything from alpine climbs to multi-day treks. Designed with Polartec’s advanced grid fleece, it balances warmth and breathability better than traditional insulation, keeping us dry and comfortable when we’re pushing hard in cold conditions. Whether we’re booting up icy gullies or backpacking under shifting skies, this piece always earns its spot in our pack.
Its streamlined design features stretch-knit side panels for improved mobility, a chest zip pocket for quick storage, and thumbholes at the cuffs for secure layering. Recycled content helps reduce its impact, while reflective details add visibility during late returns to the trailhead. Simple, technical, and ultra-functional, this half-zip is an essential part of our cold-weather layering system.
Details
- Technical midlayer fleece for alpine climbing, hiking, and ski touring
- Polartec Power Grid fabric enhances warmth and moisture control
- Grid-backer design traps heat while staying breathable
- Stretch-knit side panels improve range of motion
- Half-zip front helps regulate temperature during exertion
- Zippered chest pocket adds small-item storage
- Thumbholes keep sleeves in place under layers
- Made with 60% recycled polyester for lower environmental impact
- Item #MHWZA5S
- Material
- Polartec Power Grid (60% recycled polyester, 33% polyester, 7% elastane)
- Insulation
- fleece
- Fit
- regular
- Length
- hip
- Hood
- none
- Venting
- half-length front zipper
- Activity
- casual, hiking, training, skiing, snowboarding
Reviews
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What do you think about this product?
Overall Rating
5 based on 13 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageAugust 2, 2025
Two Thumbs Up. Really good combination of excellent material and quality craftsmanship. Durable piece of clothing. This is in the pack for every backpacking trip and gets significant usage. Do all the research you want but then buy this fleece shirt.
Great material and quality craftsmanship. Always in the pack.
Originally reviewed on mountainhardwear.com
March 31, 2025
Professional and recreational grade
Straightforward fleece that has great features, adds a lot of warmth, and love to chest pocket feature.
Originally reviewed on mountainhardwear.com
February 12, 2025
Great Mid-Layer
Worked great as a mid-layer on a recent 5-day ski trip in the Canadian Rockies. Helped keep me warm in below 10ºF temps.
Originally reviewed on mountainhardwear.com
April 5, 2024
Picked this up for the 3 passes Nepal Trek. It's a winner!. Let's air pass through for venting while strenuous hiking and keeping you warm when you stop to take a look around. Add a super light wind breaker and it is a the ultimate two piece trekking gettup!
Originally reviewed on mountainhardwear.com
March 26, 2024
Great layer for ice and alpine climbing.
Great layer! Wore as mid layer ice climbing and alpine climbing. Sizing fits as if its the 1st/2nd layer.
Originally reviewed on mountainhardwear.com
March 3, 2024
Fantastic midlayer
Excellent warmth for the thickness and weight. Thumb loops help to provide a nice seal when wearing gloves to prevent heat loss. It feels a little different under the arm pits due to the stitching but its hard to notice with a base layer on underneath and you are moving and rucking around. Neck fabric is not irritating to the skin. Overall fabric withstands friction and abrasion well.
Originally reviewed on mountainhardwear.com
February 19, 2024
I’m have 2 of these. Solid mid layer.
I have this in two colors. One of my most used pieces of gear. Great for stand alone warmth. Great as a base layer.
Originally reviewed on mountainhardwear.com
February 15, 2024
One of the best fleece ever!
Polartec grid fleece has been my favorite fleece material for years. It is warm and breaths better than any other fleece on the market. MW nailed it! Great fit, good useable sized pocket, a true half zip, and a great cuff design!! Love this fleece
Originally reviewed on mountainhardwear.com
February 14, 2024
One of the best layers.
One of my favorite layers. Great quality fleece, warm but still very breathable. I’m 5’11” and 185 with an athletic build. Had to go with a large to get the shoulders to fit comfortably but the body is a bit boxy. The medium was the preferred body size but was tight in the lats and forearms. But still giving it 5 stars because of the fleece.
Originally reviewed on mountainhardwear.com
February 9, 2024
Terrific mid layer
Love the warmth and the fit-- cut closer to the body above the hips and slightly longer than others. Another great product from Mountain Hardwear.
Originally reviewed on mountainhardwear.com
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