Thermal Underwear(384)

Merino wool thermal underwear uses the natural properties of the wool fibre to provide warmth and moisture management in a single layer worn directly against the skin. Unlike synthetic thermal underwear, merino wool continues to insulate even when damp and manages odour naturally, which means it can be worn for longer between washes during extended outdoor use. At DILLING, our merino wool thermal underwear is designed for cold-weather use across a range of activities, from everyday commuting in winter to outdoor pursuits in cold conditions.

At DILLING, our men's thermal underwear covers merino wool long-sleeve tops and long-johns designed as a base layer for cold-weather use. Men's merino thermal underwear works effectively under everyday winter clothing as well as technical outdoor layers. The temperature-regulating properties of merino wool help maintain comfort as activity level changes throughout the day, providing warmth when at rest and breathability during physical effort. Our men's thermal range is available in different weights suited to different temperatures and activity levels.

Our women's thermal underwear range covers merino wool base layers designed for cold-weather comfort. Women's merino thermal underwear is soft against the skin and breathable, making it comfortable for all-day wear under winter clothing during commuting, outdoor activities and everyday cold-weather use. At DILLING, our women's merino thermal underwear is designed to work effectively as part of a layering system, providing natural fibre warmth in a form-fitting base layer format that does not add unnecessary bulk under outer layers.

Outdoor activities in cold conditions require base layers that manage moisture during physical effort while maintaining warmth during rest periods. Merino wool thermal underwear is well suited to this requirement because of its moisture-wicking properties and natural insulation. For hiking, skiing, cycling and other cold-weather outdoor pursuits, a merino wool base layer provides effective thermal regulation in a natural fibre format. At DILLING, our thermal underwear range covers different weights and formats suited to different outdoor activity types and temperatures.

Merino wool thermal underwear benefits from gentle care to maintain its properties and extend its working life. Wash thermal base layers on a gentle, cool wool cycle after use to remove sweat and maintain freshness. Avoid high washing temperatures, which can cause shrinkage and affect the structure of the merino wool fibre. Do not use fabric softeners, which can reduce the moisture-wicking effectiveness of the natural fibre. For a full guide to caring for your merino wool base layers, see our care guide. Lay thermal garments flat to dry rather than tumble drying.