Crater Lake Half-Zip Top - Women's
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Crater Lake Half-Zip Top offers lightweight sun protection with moisture-wicking performance for active days
What Our Gearhead® Experts Are Saying:
"This is my go-to layer for sunny hikes and high-output activities. The UPF 50 fabric keeps my skin protected from harsh rays, and the moisture-wicking material keeps me dry even when I’m working hard. The half-zip lets me dump heat quickly, and the low-profile thumb loops make layering a breeze. Whether I’m on the trail or just out for a morning run, this piece is a must-have."
From sunrise trail runs to summit lunches, the Crater Lake Half-Zip Top keeps us protected and comfortable in any adventure. The ultra-soft, jersey-knit fabric wicks away sweat while delivering UPF 50 sun protection, so we can focus on the journey without worrying about UV exposure.
A well-placed half-zip lets us control our airflow, whether we need extra ventilation during a climb or a little extra coverage when the wind picks up. Low-profile thumb loops keep our sleeves in place when layering, making this an ideal piece for year-round performance.
Details
- Lightweight, moisture-wicking pullover for active pursuits
- UPF 50 fabric provides broad-spectrum sun protection
- Half-zip front allows for adjustable ventilation
- Low-profile thumb loops keep sleeves secure and layer smoothly
- Soft jersey-knit material enhances all-day comfort
- HeiQ Mint odor control technology keeps fabric fresh
- Item #MHWZABK
- Material
- 88% polyester, 12% elastane
- Fit
- regular
- Style
- half-zip mock-neck
- Thumbholes
- thumbloops
- Anti-Odor
- HeiQ Mint odor control technology
- Claimed Weight
- 4.23oz
- Activity
- casual, hiking, backpacking, trail running
- Manufacturer Warranty
- limited lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 6 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageJuly 7, 2025
Great Shirt
Love the pattern... the material is very soft. I like knowing I don't have to worry about the sun
Originally reviewed on mountainhardwear.ca
July 4, 2025
My new favourite
I loved this Women's Crater Lake 1/2 zip so much that I purchased it in 2 other colours. Very comfortable, stylish, and flattering! I’ve purchased three of the Crater long sleeve shirts (3) as well as the crater tanks and use them for walking, shopping, and pretty much everything. I especially love the fact that this shirt protects from sun rays. The colours are just lovely and the fabric is nice and light! I bought my first Mountain Hardwear shirt by chance in Woofville, NS Canada as I was looking for a long sleeve shirt to protect me from the sun while on vacation! I’m so glad I took the chance and bought it! My new favourites!
Originally reviewed on mountainhardwear.ca
June 5, 2025
Super comfortable!
I love this top so much. It's light and not suffocating in the heat. Love the sun protection. Please make this in more bright fun colors. I wanted another one, but not thrilled with the other color choices.
Originally reviewed on mountainhardwear.com
June 4, 2025
I like baggier pieces, which I understand is probably against the idea of this piece.
I’m 5’8, 150-160 lbs and with broader shoulders and usually wear women’s LG up top, I ordered a LG in this piece and it fits relatively baggy on me, (besides the area right under my shoulders and armpits, which fits a little snugger), but that’s what I was looking for in a UPF layer. I think the top is supposed to be a little more form-fitting so I believe you could size down to a medium for a fit such as that if you have a similar build as mine, minus the snug arms part.
Originally reviewed on mountainhardwear.com
May 5, 2025
Super soft sun protection
The fabric feels so nice, the sun protection is awesome. I like that this does not snag as easily as another brand I tried.
Originally reviewed on mountainhardwear.com
April 28, 2025
lightweight, comfortable sun shirt for hiking!
The Crater Lake Half-Zip is my favorite sun shirt for hiking. It provides excellent sun protection and feels much cooler and softer than most of the other top brands I’ve tried. While no shirt can truly keep you cool in the heat, this one stays as comfortable as possible when hiking on sunny hot weather days. I also own the Crater Lake Hoodie, which uses the same material and is just as comfortable and breathable. I only wish Mountain Hardwear made more colors and designs — I would definitely stock up. Highly recommend if you need a lightweight, comfortable sun shirt for hiking!
Originally reviewed on mountainhardwear.com
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