Functional underwear, also known as sports underwear, is the bottom layer of your layering system. It beds directly on the skin and is the first layer to absorb body moisture. This is where it can show what it's made of:
We have short sleeve tops, long sleeve tops, short bottoms, long trousers, sports bras and cycling underwear. Thermal underwear for women therefore differs from normal underwear in terms of its functionality. In more detail, it has three functions:
Thermal underwear is considered breathable if it absorbs body moisture and wicks it away to the outside. Otherwise you would quickly feel soaking wet during sweaty activities. The damp underwear would stick to your body and cool you down. Did you know that an untrained person produces around 0.8 liters of sweat in one hour of sport, while a trained person produces 3 liters? Sweating is healthy. That's why your clothing should be designed for this, right down to the baselayer.
Your body always wants to keep its temperature at 37 degrees, no matter what you're doing straight away. When you exert yourself during your outdoor activities, you sweat so that the evaporative cooling cools your skin. Good thermal underwear for women helps your body to always stay in the comfort zone of 37 degrees.
Winter sports pose completely different challenges for thermal underwear. Insulation against the cold is particularly important here. Ski underwear or thermal underwear is not only warming, but also breathable - so you stay dry. After all, nothing leads to a cold faster than wet underwear that sticks to your skin while you stand motionless in line at the lift or freeze in a cold chairlift.
Is natural merino wool or the versatile synthetic fiber the ideal choice? This question is not so light to answer. As is so often the case, you can only say: it depends!
Merino wool has the great advantage that it keeps you warm even when damp. It can absorb up to 30 percent of its own weight in moisture without feeling wet. Merino underwear is therefore ideal for stop-and-go sports. When you're climbing up the mountain on skis, you're always stopping to catch your breath and enjoy the view. Merino underwear is recommended here as a base layer. It is also odorless and smells fresh again the next day if you hang it up overnight.
Synthetic fibers can be produced specifically for a wide variety of requirements using appropriate spinning processes. Hollow fibers, bulky yarns, smooth or rough structures - all are possible. In addition, by combining polyester, polyamide and elastic yarns, a huge range of functions can be ensured in the yarn itself. Special machines use these yarns to produce seam-free, highly elastic and quick-drying thermal underwear. So why look for an alternative? Synthetic fiber quickly smells unpleasant and should be washed after every strenuous effort. If this is not possible, then merino wool is your first choice.
How good that the advantages of both fibers can also be combined. At Transa, you'll find a quantity of models made from a clever mix of different natural and synthetic fibers. This allows you to enjoy the natural warmth of nature and the functionality of synthetic fibers. Thermal underwear for women could not be better.
(With the TransaCard always free of charge)