Mammut Go Warm Base Layer – Review
We had a chance to check out some first layer underwear from Mammut. Base layer clothing is often overlooked when heading into the backcountry. However, a great base layer can wick moisture away from the skin for faster dry times in while touring up the mountain. They can also provide warmth when wet. Any experienced […]
We had a chance to check out some first layer underwear from Mammut. Base layer clothing is often overlooked when heading into the backcountry. However, a great base layer can wick moisture away from the skin for faster dry times in while touring up the mountain. They can also provide warmth when wet. Any experienced splitboarder knows how difficult it can be to regulate temperature and perspiration during a day off piste. With a good base layer and proper layering, this isn’t too hard to do.
The Mammut Go Warm has a slim fitting design. I’m 5’10 and 165 lb and found that a Large was the perfect size. It hugs your body and is a great mix between movement and layering. It’s made from 100% polyester microfiber. It’s also infused with Merino wool to provide additional warmth even when wet. There are seperate panels with different material for different applications on the body. The material is also antibacterial to avoid the gym bag smell.
We thought the Pure antibacterial by Heiq would be just another gimmick, but it works amazingly well. After a 3 hour sweat infused hike, we tested two shirts during this hike. The first underlayer was not coated with Heiq and the Mammut Go Warm which was. After the test, we asked the testers to smell the difference, it was obvious that the two shirts worn by the same person were drastically different. In a blind test, we took the unwashed Go Warm and asked if it was clean or dirty. Everyone we asked said it was clean! Still being a sceptic, we washed the garment to identify any loss in effectivness. After multiple uses and washes we found it continued to perform, but did seem to loose some of it’s effectiveness.
Merino wool (https://en.wikipedia.org/wiki/Merino) comes from special sheep bread specifically for it’s wool. It’s regarded as the finest and softest wool of any sheep. It’s been made popular in athletic clothing because of it’s ability to regulate body temperature when worn against the skin, to provide warmth without overheating. Merino wool can extract moisture from the skin and wick it away from the body. It’s very soft for a wool, and provides warmth even when wet. It has one of the best warmth-to-weight ratios when compared to other wools.
The Go Warm also features Symbitech (™) which is specifically designed for stop and go activities. Perfect for Splitboarding. The garment is body mapped to combine the materials in a way that getter regulates heat and moisture. When we had the Go Warm basically dripping with perspiration, and just a soft shell over the top
The fit is overall very well, comfortable and non-restricting. The fabric is elastic and stretchy and avoids chafing. One issue we seem to have with all bottoms of first layer and the Go Warm from Mammut seems to suffer from it as well is the sagging of the lower garment. Splitboarding creates an incredible amount of heat and sweat in pants. When the heat builds up, the sweat starts to pour, and if unable to escape gathers on the inside of the first layer. The crotch seems to sag more and more as the day goes on. While this may be due to body type, amount of personal perspiration, etc, but we seem to have this problem with multiple base layer bottoms.
It’s important to wear a material that can keep warm when sweat from the hike up can be trapped in a jacket or shell. Dressing in layers is a must when splitboarding and often overlooked is a great base layer. While the Mammut Go Warm is made with one of the nicest wools on the market, and is super soft. As for high end merino wools it’s pretty standard. If you’re still wearing t-shirts under your jacket, it’s a definite upgrade. If you’re already using a decent base layer don’t expect to have any huge changes by using the Mammut Go Warm.