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Mountain Hardwear
Crater Lake Long-Sleeve Crew Shirt - Men's

4.4 out of 5 stars
5 Reviews

Out of Stock

Don't worry though, we have a lot more Men's Performance Shirts - Long Sleeve in stock than that.

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Why We Like The Crater Lake Long-Sleeve Crew Shirt

When the sun's creeping over the mountaintops, we don't want to stop and reach for sunscreen mid-trek, so we're glad we're hiking in the Crater Lake Long-Sleeve Crew Shirt. Its UPF 50 rating and secure cuffs keep us covered when the solar rays take over the starry morning sky. Breathable synthetic fabrics keep us comfortable as the day heats up, and raglan sleeves give us the mobility we need when we hit the steeper sections of the trail.


  • Sun-blocking long-sleeve shirt for early mornings and summer days
  • Stretchy polyester threads wick moisture for cool all-day comfort
  • Classic crewneck silhouette with raglan sleeves for mobility
  • Thumbhole cuffs keep sleeves in place while on the move
  • Item #MHWZ9O5
88% polyester, 12% elastane
Center Back Length
UPF Rating
Claimed Weight
running, training
Manufacturer Warranty

Overall Rating

4.5 based on 5 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 1 reviews
5 Stars - 3 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large


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3 out of 5 stars

June 27, 2024

Light weight, doesn’t dry on the trail

I've put it through the wringer

Shirt is light weight but kind of retain your body heat, which isn’t good when your trying g to stay cool. Once you get sweating it stays wet and will not dry off even if you hang it on a clothes line over night. Kind of disappointed.


Originally reviewed on Backcountry.com

5 out of 5 stars

June 20, 2024

Love this shirt

I've used it several times

We just headed out on a two week hike up the coast of Spain and love the sun protection, lightweight and easy to clean/dry Mountain Hardware shirt!

Bruce C

Originally reviewed on Backcountry.com

5 out of 5 stars

April 19, 2024

My favorite shirt

I've put it through the wringer

These have become my new go-to shirts. I’m steadily filling up my closet with them. They are super soft and comfortable and moisture-wicking. The fit is just right, too. They run very true to size. Highly recommend these shirts,


Originally reviewed on Backcountry.com

5 out of 5 stars

September 5, 2023

Great Shirt

Bought this a couple months ago and wore during an 8-day trek on Kilimanjaro and a few days of a Safari. Was super light and very comfortable and great at keeping the sun off. Really like the shirt.


Originally reviewed on mountainhardwear.ca

4 out of 5 stars

September 16, 2022

Great shirt but dye runs

I've used it once or twice and have initial impressions

I bought this shirt in stone green for my husband to wear fishing because it is lightweight and UPF 50. He loves it - the fit, the feel, the lightweight fabric. We washed it today by hand, so he could wear it again tomorrow paddle boarding. We were surprised to see that the water was very green from the dye in the shirt. It took a few rinses for the water to be clear. I’m just glad we didn’t put it in with other laundry. We plan to buy another and would recommend it ….. with a word of caution when laundering.

Robert L

Originally reviewed on Backcountry.com