Mammut Aenergy FL LS Men's Longsleeve Base Layer, Mammut Red

The Mammut Aenergy FL LS is a high-performance longsleeve base layer designed for men who demand comfort and functionality during intense outdoor activities. Crafted from 100% recycled polyester with a waffle structure, it offers excellent moisture wicking and quick-drying properties to keep you dry and comfortable. The HeiQ Fresh FFL technology provides reliable odor control, making it ideal for multi-day adventures. With an athletic fit, flatlock seams, and a crew neck, this top ensures freedom of movement and prevents chafing. The UPF 30+ protection shields your skin from harmful UV rays. Whether you're trail running, hiking, mountaineering, or ski touring, the Aenergy FL LS is your go-to layer for any fast-paced pursuit.

Advantages

This base layer combines sustainability with performance. Made from recycled materials and bluesign® certified, it minimizes environmental impact without compromising on quality. The lightweight, stretchable fabric adapts to your movements, while the flatlock seams enhance comfort. The HeiQ Fresh FFL treatment keeps odors at bay, so you stay fresh longer. Plus, the UPF 30+ rating adds an extra layer of protection against the sun.

Suitable for

• Trail running
• Hiking
• Mountaineering
• Ski touring
• Fast hiking
• Any high-intensity outdoor activity

Key specifications

• Product Type: Longsleeve Base Layer / Mid-Layer
• Gender: Men's
• Material Composition: 100% Recycled Polyester
• Technology: HeiQ Fresh FFL (Odor Control)
• Features: Active Moisture Wicking, Quick-Drying, Lightweight, Stretchable, Flatlock Seams
• Fit: Athletic Fit
• Sleeve Length: Long Sleeve
• Neckline: Crew Neck
• UV Protection: UPF 30+
• Intended Use: Trail Running, Hiking, Mountaineering, Ski Touring, Fast Hiking
• Color: Mammut Red
• Sustainability: Made with Recycled Materials, bluesign® PRODUCT
• Fabric Structure: Waffle Structure
• Care Instructions: Machine Wash Cold, Do Not Bleach, Tumble Dry Low, Do Not Iron, Do Not Dry Clean

Recommendations

For optimal performance, pair this longsleeve with a Mammut shell jacket and pants. Layer according to weather conditions. Machine wash cold and tumble dry low to maintain fabric integrity. Avoid fabric softeners and bleach.