The 4F men’s fleece thermal underwear is a long-sleeved top designed to be worn as a second clothing layer when skiing, during winter walks and while taking part in activities in cold conditions. 4FWarm technology, soft fleece fabric and a regular fit provide a combination of thermal comfort and freedom of movement. The model works well as an additional insulating layer under a jacket, making it a practical choice in the category of men’s fleece and brushed thermal underwear.

The 4FWarm technology used in the garment supports the retention of body-generated heat and helps limit heat loss when spending time in low temperatures. The main material consists of 94% polyester and 6% elastane, combining the functional properties of synthetic fibres with the flexibility needed during movement. The soft fleece structure feels pleasant against the body and supports thermal insulation. The addition of elastane increases the stretch of the fabric, allowing the garment to comfortably adapt to the body during activity.

The regular fit with a hip-length cut provides a comfortable fit and makes it easier to wear the underwear under additional clothing layers. The high stand collar provides extra protection for the neck against cold air, increasing comfort during outdoor activities. Flat seams reduce friction between the fabric and the skin, helping to minimise the risk of chafing and irritation during extended wear. This men’s fleece top from 4F combines a lightweight construction, flexible fabric and thermal insulation properties, making it suitable for skiing, winter trips and everyday activities on cold days.

KEY FEATURES

• Brand: 4F
• Type: men’s long-sleeved fleece thermal underwear top
• Purpose: second clothing layer in cold conditions
• 4FWarm technology: supports heat retention and thermal comfort
• Material: soft, flexible fleece fabric
• Fit: regular – comfortable fit and freedom of movement
• Length: standard, hip-length
• Collar: high stand collar that protects the neck
• Seams: flat, reducing the risk of chafing and irritation
• Properties: thermal insulation, soft and flexible fabric
• Main material: 94% polyester, 6% elastane
• Use: skiing, winter walks and activities in cold conditions