The Kilpi Willie is a men's long-sleeved functional base layer for both sport or outdoor activities. The Opti-Dry material wicks sweat and moisture away from the skin, is pleasantly warm, quick-drying and sufficiently stretchy. In addition, mesh inserts in the underarms improve breathability and lighten the overall construction. The flat seams are gentle on the skin and do not irritate. The high collar with zip fastening is finished with a chin cover.

• Opti-Dry material
• Functional base layer
• Underarm mesh inserts
• Zip fastening with chin cover