Sensor Merino Active is a premium men's functional long-sleeve zip shirt, designed as an essential base layer for year-round sports and mountaineering pursuits. It is made from top-quality 100% merino wool sourced from New Zealand, renowned for its exceptional softness and natural elasticity. The fine, carefully processed fibres are extremely gentle on the skin and do not cause unpleasant itching or irritation, ensuring long-lasting comfort even during all-day wear in the mountains or during high-intensity sports activities.

Thanks to a fabric weight of 160 g/m², the shirt falls into the medium-weight (MID weight) base layer category, offering an optimal balance between effective thermal insulation and high breathability. Merino wool naturally regulates your body's microclimate, wicks sweat away from the skin quickly, and reliably keeps you warm even when damp. The natural lanolin content provides permanent antibacterial protection and prevents the build-up of unpleasant odours, keeping the garment fresh even after multiple days of wear. For safe movement on sunny mountain slopes, the fabric provides dependable UV protection with a UPF 25+ rating.

The anatomical close fit (Slim Fit) contours perfectly to the body and follows natural movement, while ergonomic flatlock seams reliably prevent chafing and pressure points under heavy backpack shoulder straps. A stand-up collar with a convenient chest zipper enables quick ventilation during strenuous ascents while offering reliable neck protection against cold winds. With an exceptionally light weight of around 170 g, this long-sleeve shirt is an indispensable piece of kit for hiking, skiing, ski touring, and cross-country skiing.