Salewa Cristallo Warm Alpine Merino Responsive in Black Out color is a men's thermal base layer designed for alpine trekking and ski touring in demanding mountain conditions. Combining Merino wool with Responsive technology, it delivers excellent warmth, efficient moisture management, and unrestricted comfort throughout every mountain adventure.

• Warm Alpine Merino Responsive Fabric: the advanced Merino wool blend provides outstanding thermal insulation, rapid moisture transfer, and faster drying compared to traditional Merino fabrics.
• Natural Temperature Regulation: the crimped structure of Merino fibers traps warm air in cold conditions while releasing excess heat during demanding ascents and high-intensity activities.
• Natural Odor Resistance: the antibacterial properties of Merino wool help keep the garment fresh even after multiple consecutive days of use.
• Stretch Mobility: the four-way stretch Responsive construction follows every movement, ensuring complete freedom during steep climbs, ski touring ascents, and technical terrain.
• Flatlock Seams: smooth, low-profile seams eliminate pressure points and reduce friction beneath backpack shoulder straps or a climbing harness.
• Long Sleeve Design: full arm coverage provides additional warmth and protection from UV exposure at higher altitudes while maintaining a slim profile for easy layering.