Men's HIKE Lone Pine Cottontrails Sleeveless Muscle Tee
Men's HIKE Lone Pine Cottontrails Sleeveless Muscle Tee
Built for lifting, running and everyday adventures, the Runyon Cottontrails™ Muscle Tee is a lightweight, breathable sleeveless workout shirt crafted from 100% cotton grown in the USA. Designed with extended shoulder coverage and a curved bottom hem, this natural-fiber muscle tee delivers comfortable freedom of movement whether you're pumping iron at the gym, heading out for a morning run or wearing it around town.
The soft cotton fabric is garment-washed and pre-shrunk for a comfortable feel from day one. Designed, engineered and field-tested by endurance athletes, the Cottontrails™ Muscle Tee is built for running, trail running, hiking, strength training, gym workouts, fitness and warm-weather outdoor wear — a natural-fiber alternative to synthetic workout shirts.
Proudly cut and sewn in Los Angeles' Historic Fashion District using USA-grown cotton, this versatile sleeveless athletic shirt brings together American-made craftsmanship, natural-fiber comfort and a clean, minimally branded design made for movement.
Cottontrails™ Collection
Launched May 1, 2026, the Cottontrails™ Collection is Runyon's line of 100% cotton athletic and outdoor apparel crafted from USA-grown cotton and proudly made in Los Angeles, California. Each garment is handcrafted, garment-washed and pre-shrunk for comfort and a consistent fit. Designed for running, hiking, training, travel and everyday adventures, Cottontrails™ brings natural fibers back to active and outdoor apparel.
Engineered and field-tested by endurance athletes, the Cottontrails™ Collection combines natural-fiber comfort with functional designs made for movement. From trail runs and hikes to gym workouts and everyday wear, the collection is built for athletes and outdoor enthusiasts looking for Made in USA cotton apparel and an alternative to synthetic activewear.
Men's Cottontrails™ Muscle Tee
Garment Washed & Pre-Shrunk
| XXS | XS | S | M | L | XL | 2X | 3X | |
|---|---|---|---|---|---|---|---|---|
| Chest | 17.5 | 19 | 19.5 | 22 | 22.5 | 23.5 | 25 | 26.5 |
| Length | 24.5 | 25.5 | 26 | 27 | 28.5 | 29 | 29.5 | 30 |
| Hem | 17.5 | 19 | 19.5 | 21.5 | 22 | 23.5 | 25 | 26.5 |
| Ounces | 3.7 | 4.1 | 4.5 | 4.9 | 5.1 | 5.6 | 5.9 | 6.2 |
| Women's Size | S | M | L | XL | 2X |
Measurements are in inches of the apparel flat on a table (1) Chest is pit to pit (2) Length is top of collar to bottom of shirt. Size XXS is comparable to a Women's Small and Size XS is comparable to a Women's Medium. Size S is a Men's Small/Women's Large. Measurements taken after garment wash and shrinking.
- Breathable
- Cotton
- Garment-Washed
- Lightweight
- Natural Fiber
- Pre-Shrunk
- Sleeveless
- Warm Weather