REI Co-op Trailsmith Trusty T-Shirt - Women's
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When you need down-to-earth, dependable comfort, the women's REI Co-op Trailsmith Trusty T-shirt is as faithful as that old geyser everyone talks about.
Shop similar productsKey Details
- 100% organically grown cotton with slub texture
- Drop-in chest pocket for your valuables
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Imported.
View the REI Co-op Trailsmith Product LineView all REI Co-op Women's T-ShirtsBest Use | Casual |
---|---|
Shirt Type | T-shirt |
Fabric | Organically grown cotton |
Sleeve Length | Short Sleeve |
Hood | No |
Gender | Women's |
Weight | Unavailable |
Sustainability | Contains organically grown fibers From a Climate Label Certified brand |
XXS | XS | S | M | L | XL | 1X | 2X | 3X | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18W | 20W | 22W | 24W | 26W | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Numerical Size | 00 | 0-2 | 4-6 | 8-10 | 12-14 | 16 | 18 | 20-22 | 24-26 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 |
Bust | 31 | 32-33 | 34-35 | 36-37 | 38.5-40 | 41-42.5 | 43-45 | 47-49 | 51-53 | 32 | 33 | 34 | 35 | 36 | 37 | 38.5 | 40 | 42.5 | 45 | 47 | 49 | 51 | 53 |
Sleeve Length | 29.5 | 30 | 30.5 | 31 | 31.5 | 32 | 32.5 | 33.5 | 34.5 | 30 | 30 | 30.5 | 30.5 | 31 | 31 | 31.5 | 31.5 | 32 | 32.5 | 33.5 | 33.5 | 34.5 | 34.5 |
Waist | 24.5 | 25.5-26.5 | 27.5-28.5 | 29.5-30.5 | 32-33.5 | 34.5-36.5 | 37.5-39.5 | 40.5-42.5 | 44.5-46.5 | 25.5 | 26.5 | 27.5 | 28.5 | 29.5 | 30.5 | 32 | 33.5 | 36 | 38.5 | 40.5 | 42.5 | 44.5 | 46.5 |
Hip | 34 | 35-36 | 37-38 | 39-40 | 41.5-43 | 44-46 | 47-49 | 50-52 | 54-56 | 35 | 36 | 37 | 38 | 39 | 40 | 41.5 | 43 | 45.5 | 48 | 50 | 52 | 54 | 56 |
Inseam | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated. Size chart values represent body measurements, not garment measurements. Some women's pants are available in petite and tall sizes. Typically petite sizes fit women 4'11" to 5'3". Regular sizes fit women 5'4" to 5'8". Tall sizes fit women 5'9" to 5'11".
PETITE: Generally, as compared to regular sizes, petite sizes are 2.5 inches shorter in inseam, 1 inch shorter in body length, 1.25 inches shorter in sleeve length and ¾ inch shorter in total rise.
TALL: tall sizes are 3 inches longer in inseam, 2 inches longer in body length, 2.5 inches longer in sleeve length and 1.25 inches longer in total rise.
Capri or cropped pants have an intentionally shorter inseam—reference the technical specs instead of this chart.
Inseam is measured to the floor.
Better gear is built together
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.


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comfy and flattering
Really cute tshirts. I bought several colors in my usual size small. They aren’t the stretchiest fabric, but they hold their shape and wash well. I think they’ll last well over time. White color is not see through at all.
Cool Comfort
REI quality - T-Shirt which comes in basic colors and 2 shirts that are striped. I purchased all the colors. These are now my favorite everyday shirts, because the material is (100% cotton) so soft, and are a simple design but a little step up due to a pocket just for looks.They go with everything and easy to wash. I hope next year they come out with brighter colors and patterns in the same easy going style. I love this comfortable t-shirt !!
Needs a better neckline.
I love this T-shirt but I wished the neck was not so loose. If it were more of a crew neck, like a man’s T-shirt it would be better. Otherwise, I love it.
Will buy more
Perfect fit for me (5'1" 138 Medium) I like a baggier fit to hide my tummy. Love these shirts! They wash well and the colors are great.
Perfect for outdoors and everyday
Very comfortable, love the feel of the fabric. I would size down though--a small fits me well and is still loose, although I typically wear a medium. The shirt is plenty long--even after sizing down it goes many inches past my belly button!
Favorite Tee!
Soft and true to size. It's now a favorite tee and comfortable for all seasons! So happy to find a t-shirt like this, I'll be purchasing a couple more.
Soft and cool
This shirt is very comfortable and flattering. Another reviewer said it was too short, but I don't think so. I am 5'3"
Great basic white tee
Comfy and well-made. Sturdy while still being lightweight and breathable. 100% cotton, so it will shrink in the dryer; size up to account for that if you want it to be true to size. Nice little chest pocket.
Very comfortable and flattering cut
I love this t-shirt. It's very soft and comfortable, and the fit is flattering. The length is just right for me.
Versatile, perfect fit white tee
This is the best white tee and I’m sorry it’s discontinued! I’ve searched for the perfect white tee and finally found it. Not too short, fits a bust with petite frame, doesn’t need to be tucked. I’m so bummed it’s discontinued! I bought the black and blue, too, but don’t love the faded look. I wish I had bought a ton of the white ones!