Men's thermal active T-shirt 4F M224 deep black 4FWAW25USEAM224 20S S/M

On a cold morning trail run or a demanding ski session, this men's thermoactive base layer from 4F keeps you warm and dry without restricting movement. The deep black long-sleeve top in size S/M is cut slim to fit close to the body, making it an ideal first layer under a jacket or midlayer.

Key specifications

• Material: 92% polyester, 8% elastane – lightweight, stretchy and durable
• Colour: Deep black, solid coloration
• Fit: Slim fit with long sleeves and round neck
• Technology: 4F Dry – wicks moisture away from the skin
• Seams: Flatlock seams prevent chafing during movement
• Thermal properties: Provides thermal comfort and regulates body temperature
• Breathable and fast-drying
• Gender: Men's
• Season: Autumn/Winter 2022
• Intended use: Multi-sport, training, outdoor activities, winter sports

Why choose it

The combination of polyester and elastane gives you four-way stretch and excellent moisture management. The 4F Dry technology pulls sweat away from your skin, keeping you dry even during high-intensity efforts. Flatlock seams lie flat against the skin, reducing irritation when you layer up or wear a backpack. The slim cut ensures a snug fit that traps warmth without bulk.

Ideal use cases

• Winter running and cross-country skiing
• Alpine skiing and snowboarding as a base layer
• Hiking and trekking in cool weather
• Gym training and indoor cycling
• Everyday wear under casual clothes in cold climates

Good to know

This base layer is machine washable at 30°C. Do not use fabric softener, as it can reduce the wicking performance. Hang dry or tumble dry on low heat.