Lämpökerrasta

Lämpökerrasta refers to a layer of clothing designed to be worn next to the skin for thermal insulation. The primary function of lämpökerrasta is to trap body heat and minimize heat loss to the environment. It is typically made from materials that are good at retaining warmth and wicking away moisture. Common materials include merino wool, synthetic fabrics like polyester or polypropylene, and sometimes silk. These materials are chosen for their ability to provide insulation even when damp, which is crucial for active pursuits where sweating is common.

The effectiveness of lämpökerrasta depends on its fit and material. A snug fit is generally preferred as it ensures good contact with the skin, allowing the material to efficiently capture and hold body heat. Loose-fitting garments can create air pockets that reduce insulation. Different types of lämpökerrasta are available, ranging from lightweight options for mild conditions to heavier, thicker versions for extreme cold. The choice of lämpökerrasta often depends on the intended activity and the ambient temperature. It is a fundamental component of layering systems, providing the base layer that works in conjunction with mid-layers and outer shells to regulate body temperature in various weather conditions.