Get a 3-Pack of these T-shirts, and you'll likely get by a long time without much laundry hassle – merino wool is a relatively low-maintenance material!

If you insist on getting just one t-shirt, here they are.

A purely functional merino wool T-shirt for active wear, made from merino wool, simply the best material you can wear next to the skin. Snug active fit, raglan sleeves and flatlock seams guarantee minimum chafe and maximum comfort, making this a damn good base layer for active, demanding use.

• Active fit: snug and comfortable.
• Raglan sleeves: no chafing seams on the top of the shoulders adds comfort when carrying rucksacks.
• Flatlock seams: no thick folds that could cause discomfort.
• Long hem: the hem is longer at the back to keep it safely tucked in when moving about.
• Velcro patch for Finnish army M05 rank insignia on the left sleeve.

Merino wool is a fantastic choice for next-to-skin wear, most notably it feels good against the skin and retains its insulating properties even when soaking wet.

L1 - Base Layer

The first layer of the Särmä TST clothing system, tasked with moisture management. A good next-to-skin baselayer keeps you feeling comfortable in any conditions to do this it needs to be lightweight and effectively moisture wicking. We use a lightweight merino wool blend for our base layers, a natural and very functional material for this purpose.