What makes the best baselayer?

The biggest outdoor companies in the world spend thousands of dollars on design, fabric development, testing, and refining to make the perfect baselayer. In theory the perfect baselayer should have already been made, but the more that we looked at other products and tested them, the more we realised that wasn't the case. We talked to a lot of people about what they wanted and found out what worked and what didn't. After hundreds of hours looking at every possible option, we built a list of key features that we believe every baselayer should have.

1. Fabric fit for purpose

The fabric is the most important part of any baselayer, and without the right fabric nothing else matters. The fabric weight, fiber composition, and knit type will have the biggest impact on how any baselayer performs. Everyone has their own preferences for what they prefer, but we make our decisions based on how we can use yak wool (and other fibers) to create a fabric that will outperform anything else.

2. Athletic, attractive fit

Having an athletic slim fit, that isn't too tight, nor too loose is the way we design our products. This gives a great combination of comfort and performance, while allowing almost everyone to find the right size for them.

3. No chafing

Techniques such as flat stitched seams, raglan sleeves, and offset side seams will reduce chafing and improve your comfort, especially on long multi-day trips.

4. Thumb loops

Thumb loops keep your hands warm on old days, and we wouldn't go without them. We think the best thumb loops are ones that are built into the sleeve as they are the most comfortable and easiest to use.

5. Long length

Long sleeves and torso length gives extra warmth, and gets rid of any cold spots especially when climbing, cycling or skiing. There is nothing worse than having a small gap between your pants and top layers.

6. No unnecessary zips or pockets

As a next-to-skin layer there shouldn't be anything that can cause irritation, chafing or annoyance.

7. Gusseted underarms

A baselayer shouldn't restrict your movement in any way, and the use of a gusseted underarm gives your arms a complete range of motion.