WW Merino Fusion Duo 300 Thermal Top

Men’s MerinoFusion Duo 300 Base Layer

Introducing the Men’s MerinoFusion Duo 300, a premium cold-weather base layer built for demanding outdoor conditions. Combining the natural warmth of Australian merino wool with advanced synthetic performance, it delivers exceptional insulation, moisture control and all-day comfort.

The innovative 300gsm bi-layer construction places soft 18.5 micron, 100% Australian merino wool against the skin, providing natural temperature regulation, breathability and odour resistance. The outer layer features a superfine Schoeller polypropylene blend, adding durability while efficiently moving moisture away from the body.

Designed for skiing, hiking, mountaineering, hunting, camping and other cold-weather activities, the MerinoFusion Duo 300 provides serious warmth without sacrificing breathability or freedom of movement.

Key Features

300gsm heavyweight bi-layer construction for superior warmth

100% Australian merino wool against the skin

Fine 18.5 micron merino for exceptional softness and comfort

Schoeller polypropylene outer blend for durability and moisture management

Naturally breathable and temperature regulating

Excellent odour resistance for extended wear

Efficient moisture-wicking performance

Ideal for layering in cold and harsh conditions

Designed for high-performance outdoor and winter activities