TrailBest dependable originals
The Glacier National Park Mocha Brown Long Sleeve Performance Tee
💦🌞❄️ Performance Fabric
Made for days that start hot, get stormy, and end cold. Breathes well, wicks fast, and won’t stay wet. Light enough as a top, warm enough as a layer.
Made for the long light
lacier is known for its mountains, but its spirit is in the details—cold lakes, narrow passes, wildflower meadows, and the long, unforgettable drive along Going-to-the-Sun Road. This tee outlines those valleys and routes, from Many Glacier to Two Medicine, the kind of map that brings back the smell of pine after rain and the stillness of early mornings along Swiftcurrent Lake.
The performance fabric holds up to the park’s mix of cool mornings, warm afternoons, and sudden changes in weather. UPF50+ protection helps during long stretches above treeline or along exposed ridges. For anyone who’s hiked to an overlook and heard nothing but wind and their own footsteps, this shirt feels like carrying a durable reminder of the Crown of the Continent.
Important Details
This is a lightweight, comfortable layer built for long days outside. The fit runs a little generous, so the size guide will help you choose what works best for you. The fabric is steady and durable, with a bit of stretch and color that stays put. It’s breathable, soft, and dries fast without shrinking. Machine wash. Tumble dry. No ironing needed.
Made from 95% polyester and 5% spandex, the material meets the highest ultraviolet protection rating under the AATCC TM 183 test. We can share the documentation if you ever want to take a look.
Our shirts are sewn by our trusted team in Vietnam and they understand the importance of quality and attention to detail. Each one is sewn to order within a couple of days, then shipped by air to the U.S. and handed off to USPS. Expect orders to arrive within 10 to 15 business days, though busy seasons can take a bit longer. We appreciate your patience. Making each shirt one at a time is part of how we keep things thoughtful.
Checking the size guide before ordering helps us get the fit right the first time.
You can find our return policy here.
Adult Long Sleeve Performance Tee Size Chart
|
Size
|
Chest (inches)
|
Length (inches)
|
Sleeve (inches) collar to cuff |
|---|---|---|---|
|
S
|
36
|
28 | 33.5 |
| M | 40 | 29 | 35 |
| L | 44 | 30 | 36.5 |
| XL | 48 | 31 | 38 |
| XXL | 52 | 32 | 39.5 |
| 3XL | 56 |
33
|
39.5 |
| 4XL | 60 |
34
|
40 |
| 5XL | 64 |
35
|
40.5 |
Here's an easy way to check your size:
1. Lay a favorite good-fitting shirt flat with buttons fastened.
2. Measure right edge to left edge of fabric under the sleeve to find half the of the chest circumference.
3. Double your measurement and match it to the chest measurement in the chart above.
Between sizes? Go to the next larger size - this shirt is intended to be a loose, comfortable shirt!
