PEAK PERFORMANCE Men's Trail Wool-Blend Longsleeve Base Layer Shirt - Forest Night, Size L

Hit the trail in comfort with the PEAK PERFORMANCE Men's Trail Wool-Blend Longsleeve. This base layer shirt is built for hikers, trekkers, and outdoor enthusiasts who demand reliable performance in changing conditions. The blend of merino wool and polyester offers natural temperature regulation, keeping you warm when it's cool and cool when it's warm, while the moisture-wicking fabric pulls sweat away from your skin to keep you dry mile after mile. The regular fit and flatlock seams provide a smooth, chafe-free feel under a pack or midlayer, making it an essential piece for all-season adventures.

Key specifications

• Material: 50% Merino Wool, 50% Polyester (with recycled content)
• Fit: Regular fit with round neckline and long sleeves
• Moisture management: Breathable, quick-drying, and moisture-wicking
• Odor resistance: Natural merino wool keeps you fresh longer
• Seams: Flatlock construction to prevent chafing
• Certifications: RWS (Responsible Wool Standard) certified wool
• Colour: Forest Night
• Size: L (Large)

Why choose it

This longsleeve combines the best of natural and synthetic fibers. Merino wool offers superior softness, odor resistance, and thermoregulation, while polyester adds durability, stretch, and faster drying. The result is a versatile base layer that works as a standalone top on mild days or as a foundation layer under a fleece or shell in colder weather. The flatlock seams lie flat against your skin, reducing irritation even during high-output activities. Plus, the RWS certification means the wool comes from farms that meet high animal welfare and land management standards.

Ideal use cases

• Hiking and trekking in variable temperatures
• Backpacking and multi-day trips where odor control matters
• Everyday wear for cool mornings and active commutes
• Layering under a jacket for skiing, snowshoeing, or winter runs

Good to know

The Forest Night colour is a deep, versatile green that pairs well with earth tones and outdoor gear. The shirt is designed for all-season use, but it truly shines in spring, fall, and winter when temperature swings are common. For best care, machine wash cold with like colours and lay flat to dry to preserve the wool's natural properties. The recycled polyester content adds a sustainability bonus without compromising performance.