Icebreaker 260 thermoshirt L/S Crew - Midnight Navy

The Icebreaker 260 Thermal Top L/S Crew in Midnight Navy is a premium men's base layer designed for cold weather performance. Crafted from 100% ZQ-certified Merino wool with a midweight 260 g/m² fabric, this long-sleeve crew neck top offers exceptional warmth, breathability, and moisture management. Ideal for winter sports, hiking, and everyday layering, it features flatlock seams to prevent chafing, gusseted underarms for mobility, offset shoulder seams to reduce pack rub, and a drop-tail hem for extra coverage. The rib knit construction enhances stretch and comfort, while the natural odor resistance and temperature regulation keep you fresh and comfortable in varying conditions.

Advantages

Merino wool is naturally soft, breathable, and odor-resistant, making it perfect for extended wear. The 260 Thermal weight provides substantial insulation without bulk, and the slim fit layers easily under midlayers and outerwear. Flatlock seams and offset shoulders minimize friction, while the gusseted underarms allow full range of motion. The drop-tail hem ensures coverage during active movement.

Suitable for

• Winter sports (skiing, snowboarding)
• Cold weather hiking and trekking
• Everyday cold weather layering
• Outdoor activities in cold to very cold conditions

Key specifications

• Product Type: Men's Base Layer Top
• Material: 100% Merino Wool
• Fabric Weight: 260 g/m² (Midweight)
• Sleeve Length: Long Sleeve
• Neckline: Crew Neck
• Fit: Slim
• Color: Midnight Navy
• Seam Construction: Flatlock seams
• Underarm Design: Gusseted underarms
• Shoulder Seams: Offset shoulder seams
• Hem Design: Drop-tail hem
• Sustainability: ZQ-certified Merino
• Fabric Construction: Rib knit
• Seasonality: Cold to very cold conditions
• Brand Series: 260 Tech
• Care: Machine wash cold, line dry in shade, do not tumble dry

Recommendations

For optimal performance, layer this top under a midlayer and waterproof shell. Avoid fabric softeners and dry cleaning to preserve the wool's natural properties. Ideal for anyone seeking a high-quality, sustainable base layer for cold weather adventures.