Precision warmth for high-output mountain days. This high-performance midlayer is engineered with ILUS Stretch fabric and a thermal oval fleece backing to lock in heat while venting excess moisture. Whether used as a standalone layer or under a shell, it’s built to move as fast as you do.

Performance Highlights

• Advanced Heat Retention: 230gsm oval fleece backing maximizes warmth while minimizing bulk and weight.
• Friction-Free Movement: SEAMSMART technology reduces seams to eliminate chafing and increase durability under pack straps.
• Odor & Sun Protection: Features a chemical-free antibacterial treatment and UPF 50+ UV shielding for multi-day freshness and safety.
• Rugged Construction: Abrasion-resistant stretch fabric stands up to the friction of technical gear and rough terrain.

Technical Specs

• Fabric: 94% Recycled Polyester / 6% Elastane (High-stretch & eco-friendly).
• Storage: 1 secure zipped chest pocket + functional zipped hand pockets.
• Weather Shield: Wind-resistant knit to cut through summit chill.
• Fit: Ergonomic active fit for total freedom of movement.