About this item
A long sleeve tee that passes the commando test
In WWI, wool was so important to British soldiers on the front lines that knitting wool sweaters was seen as a patriotic duty. By WWII, wool’s reputation was further solidified. However, SAS members spent extended periods in the field, laden with rucksacks and additional equipment, constantly on the move.
After witnessing repeated failures with their traditional wool sweaters, the SAS sought a lighter alternative, reinforcing the shoulders and elbows for durability. This became the iconic British Commando Sweater, and the inspiration for what we call the “commando test” — to pass muster, Merino wool must be reinforced in high stress areas. If it’s not, it simply fails too fast like the traditional wool garments that the SAS rejected.
We build ALL GORUCK Merino Wool tops with reinforced paneling on the shoulders so your Merino shirt keeps its structure better over the long haul – representing the standard for performance in the Merino wool category and passing the Commando Test. This ensures that your Merino shirt maintains its shape over time, while still providing all the advantages of Merino, such as odor resistance and perfect temperature regulation, regardless of the adventure or mission at hand.
Customer reviews (42)
What customers say: Praised for comfort, durability, and odor resistance, this Merino wool long sleeve is ideal for outdoor activities. Some find the fabric less soft than expected.
★★★★★
Perfect for outdoor activity
Tyler A. · 2026-01-22
The Black version is now my favorite long sleeve for hiking and cold weather training. It keeps me warm without bulk and breathes incredibly well. The reinforced elbows and shoulders are a practical addition that really stands out.
★★★★★
Durable and comfortable
Juan D. · 2025-11-12 · Verified purchase
The Charcoal + Black long sleeve is excellent. It’s held up really well during my rucking sessions. The Merino wool keeps me warm but doesn't make me sweat excessively. It's a very reliable piece of gear.
★★★☆☆
Decent, but not soft
Seth S. · 2026-01-01 · Verified purchase
The Black + Charcoal fabric felt a bit rougher than expected for Merino.
★★★★★
Incredibly comfortable and tough
Owen S. · 2026-04-14 · Verified purchase
This long sleeve shirt is everything I look for in performance gear. The Merino wool is incredibly soft, yet the reinforced shoulders and elbows make it exceptionally durable. I wear the Charcoal + Black for everything from rucking to casual travel, and it holds up perfectly while staying fresh. It’s worth the investment for its comfort and lasting quality.
★★★★★
Super comfortable and durable
Bryce R. · 2026-01-29
The Merino wool feels great, and it's built to last.