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Mountain Hardwear
Crater Lake Short-Sleeve Shirt - Men's

4.866666666666666 out of 5 stars
15 Reviews

Out of Stock

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

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Why We Like The Crater Lake Short-Sleeve Shirt

For those hot days getting after it on the trail come summer time, we're always thankful for the wicking, breathable performance of Mountain Hardwear's Crater Lake Shirt. It's made from a silky smooth UB Solar Knit fabric, which not only wicks sweat and cools us as we go, but also offers robust sun-protection with a UPF 50 rating to help us handle those cloud-less days at elevation.


  • Performance shirt designed to keep us comfortable while on the move
  • Regular fit promotes a natural range of motion
  • UB Solar Knit fabric wicks moisture and breathes well
  • UPF 50 sun-protection helps defend against UV rays
  • Arm gussets further open up your range of motion
  • Item #MHWZ9O6
UB Solar Knit (88% polyester, 12% elastane)
Center Back Length
UPF Rating
casual, climbing, hiking, running
Manufacturer Warranty

Overall Rating

5 based on 15 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 2 reviews
5 Stars - 13 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

What do you think about this product?


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5 out of 5 stars

February 1, 2024

5-Stars & The Best in the Industry

A great short sleeve. Machine wash & dry completely fine. The elasticity of the fabric is smooth to the skin. Protects your core and shoulder areas from UVs. The inner stitchings are hardly noticeable and does not irritate like other brands like NorthFace. The length of the shirt is perfectly loose and tall. The waist has a room yet it's not too wide (I'm 6'2 190lbs athletic build). The only caveat is the color option. Definitely need more colors including White to make the line up more versatile in both short and the long sleeve in Crater Lake.


Originally reviewed on

5 out of 5 stars

December 31, 2023

Very versatile shirt for all activities.

These shirts whether long sleeve or short sleeve are my favorite shirts for every activity whether I am outdoors which is most of the time or inside just chilling.

Steve F

Originally reviewed on

5 out of 5 stars

September 19, 2023

need more colors

love the fit and the material. wish they came out with more colors


Originally reviewed on

4 out of 5 stars

June 13, 2023

Amazing active wear shirt

Really thin and pulls moister from your body, pretty light and rings out well.

Alex P

Originally reviewed on

5 out of 5 stars

June 8, 2023

Best Ts

So light and airy you’ll feel like you aren’t wearing a shirt. Absolutely love how it feels in a light breeze breeze.

Ed M

Originally reviewed on

5 out of 5 stars

May 3, 2023

Perfect Summer Shirt

Definitely my favorite summer shirt for hiking, paddling, and especially climbing. Great range of motion and suuuuuper soft, comfortable material. I could live in this thing.


Originally reviewed on

5 out of 5 stars

April 29, 2023

Crater lake shirts

Shirts are perfect for warm Arizona days and nights light fit perfectly very light and keeps your cool


Originally reviewed on

5 out of 5 stars

March 28, 2023

Great thin athletic shirt

Very thin, stretchy, and breathable athletic shirt.

Colin L

Originally reviewed on

4 out of 5 stars

March 24, 2023

Good Fit

I've used it several times
Size Bought:
5' 10"

This shirt fits well and seems to be we constructed. I have a few long sleeve hooded Mountain Hardware shirts and this one looks and feels as good as the others.

Ron L
5 out of 5 stars

March 20, 2023

Great lightweight top

This is a good shirt for most summer activities. I personally like running in mine. Super comfortable and fits great. I ordered size L, Im about 185 and 5 11


Originally reviewed on