Oversized Merino undershirt?
I just bought a merino undershirt (first layer on the skin) made by icebreaker, and realized that it is somewhat oversized. I enjoy that it´s long enough to be tucked into the shorts, but it does not really stick to the skin.
Beeing quite expensive, I´ll probably use it in all seasons. Should I return it and replace it by a smaller one?
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A base layer is one part of a layering system. A base layers job (and merino does an excellent job of this FYI) is:
- Wick sweat away from your skin and transport it to the layer above.
- Add a layer of insulation
So the questions you need to ask yourself are:
- Does this effectively move the sweat from my body?
- Does it help insulate me?
If it doesn't fit well I'd say the first of these questions is lacking. Still working to a degree but because the fit isn't ideal there are likely areas of your body where the sweat could be wicked away faster. Base layers are tight to ensure they remain in contact with your skin at all times.
The second is likely unaffected by the size issue.
Why you need this wicking
When exercising you tend to sweat but you don't really want this sweat to condense on your skin (especially when you stop moving, etc) as it will cool you too fast. In a typical layering system a base layers job is to move this sweat away form your skin as fast as possible, to prevent it condensing on your skin. Thus keeping you warm and comfortable.
It's important that the other layers in your system are breathable to allow the wicked sweat to escape from your layering.
This post was sourced from https://outdoors.stackexchange.com/a/11429. It is licensed under CC BY-SA 3.0.
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Finally, you will have to decide yourself if you want to keep it or not and it depends a bit on your preferences and on how much oversized the shirt is.
I for myself prefer my base layer shirts to be skin tight since in colder weather I often wear two similar shirts on top of each other where every one qualifies as a base layer for warmer conditions. If they were sitting loosely, chances are high that you get some pleats on spots where you don't want ones, since they might cause chafing. Other people, especially such who think they have the one or other problem area or fat pad, might prefer their clothes sitting a bit more loosely to make those problem spots not point out too much. Again other people feel constricted by clothes sitting too tightly and prefer that even their base layer shirts to be some baggy style. Well, as I wrote in the beginning, it depends.
It depends also on the type of activity you plan to use it for. If you want it for example for running or stuff like that where you don't wear too much other clothes on top and typically no backpack, it's not too critical if the base layer is a bit crammed under the other layers. With a heavy backpack and some more layers of clothes this can be more of an issue.
Those are some rational thoughts. However, finally it boils to feeling. In my own experience, if some piece of gear does not feel quite right, i.e. it is "OK-ish" but a bit flawed in a way that I feel slightly uncomfortable about it, I tend to not use it if I have alternatives where I feel better. Such pieces have the tendency to diffuse deep down into the back of my wardrobe and get forgotten there over time – and this would be sad for a brand new shirt that cost some good money.
Therefore my final advice: if you feel not quite sure about it and have the possibility to exchange it for an equivalent but better fitting one at low or no additional costs, then get the better fitting one. You will be much more happy about it than about one where you think "I should have exchanged it" every time you wear it...
This post was sourced from https://outdoors.stackexchange.com/a/11428. It is licensed under CC BY-SA 3.0.
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