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Jasper Midweight Flannel Long-Sleeve Shirt - Men's

4.352941176470588 out of 5 stars
17 Reviews

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Men's Flannel Shirts we have in stock.

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Jasper Midweight Flannel Long-Sleeve Shirt

Whether you are a pushing a peak or raking the leaves, the Jasper Flannel Shirt by Marmot gives you ultimate comfort and protection against sun and sweat. CoolMax EcoMade technology keeps you dry and warm with its moisture-wicking and quick-drying properties when you work a sweat while UPF 50 sun protection gives you excellent coverage against high alpine exposure and long hours outdoors.


  • A stylish and functional flannel for everyday adventuring
  • Cotton and polyester blend is comfortable and dries quickly
  • UPF50 protection defends against harmful rays
  • Flat-felled seams add durability and comfort
  • Buttoned chest pockets securely hold essentials
  • Regular fit provides increased range of motion
  • Item #MAR01Y6
Responsible Collection
Bluesign Approved, Recycled/Repurposed
57% cotton, 38% recycled polyester, 5% polyester
Center Back Length
2 buttoned chest
UPF Rating
Claimed Weight
Manufacturer Warranty

Overall Rating

4.5 based on 17 ratings

Review Summary

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

What do you think about this product?


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5 out of 5 stars

January 1, 2023


Nice fit, unique shirt, good looking shirt that is not everyone is wearing.

102 Tony

Originally reviewed on

5 out of 5 stars

March 28, 2022

Cozy comfy while looking good

Nice casual look. Has a standard fit so not too tight. I got the small and I wear small shirt and jacket size 36. I like that it’s cozy and very comfy, I also like that it can keep me a little warm without the bulk of a sweatshirt.


Originally reviewed on

5 out of 5 stars

March 8, 2022

My new favorite flannel

This has become my new favorite flannel. It's super soft and comfortable and the design looks great. I love the colors and the material. I want many more.

DanK Haus

Originally reviewed on

5 out of 5 stars

March 4, 2022


Great quality of material and craftsmanship. The coloring was not what I expected but other than that, this shirt is well worth it and shipping and customer service is excellent


Originally reviewed on

5 out of 5 stars

February 7, 2022

Mens Flannel

So comfortable and soft , washes great and colors stay


Originally reviewed on

2 out of 5 stars

January 24, 2022

Caution: Made in Indonesia run much smaller!!!

Bought 4 different Marmot flannel shirts (i.e. the one pictured) after Xmas. The heavier weight XL fit true to historical American XL. But not all the mid-weight do. The one made in Vietnam is OK after washing, but the two made in Indonesia were much tighter every before washing and were returned. Not even close to a real XL as other reviews also note. I'm 6'1", 195 athletic build. Length OK but way to tight in chest and body. Unfortunately the XXL is way to big for me.Bad Quality Control / attention to detail Marmot!! Everything else about the shirts are good.


Originally reviewed on

5 out of 5 stars

November 5, 2021

High quality flannels!

A high quality flannel. I love it and it comes out of the dryer looking like brand new every time. Marmot is always my go to for sure.

Shane C

Originally reviewed on

5 out of 5 stars

August 16, 2021


Looks even better in person! Well stitched, designed, and put together. Smooth winter color palette that works well with jeans. Can't wait to wear.

Originally reviewed on

2 out of 5 stars

April 17, 2021


I noticed it had ripped after only wearing it twice

Patrick O

Originally reviewed on

5 out of 5 stars

March 30, 2021

Jasper Flannel

Comfortable and good looking shirt. I like it very much.


Originally reviewed on