Columbia Midweight Stretch Long Sleeve Half Zip Thermal Baselayer Top - Blue, Size S

For cold-weather athletes who refuse to let dropping temperatures slow them down, the Columbia Midweight Stretch Long Sleeve Half Zip stands apart from typical baselayers by pairing Omni-Heat™ thermal reflective technology with a four-way comfort stretch fabric. The result is a top that moves with you on demanding ski runs or winter hikes while actively retaining body heat—without the bulky feel of traditional midweight layers.

Highlights

• Omni-Heat™ thermal reflective lining reflects body heat for superior warmth
• Omni-Wick™ moisture management pulls sweat away from the skin to keep you dry
• 4-way comfort stretch allows unrestricted movement during dynamic activities
• Midweight fabric offers an ideal balance of insulation and breathability for high-output cold-weather pursuits
• Flatlock seams reduce chafing and irritation when worn under outer layers
• Half-zip neckline provides quick ventilation control on the move

In daily use

Whether you're carving down a slope, snowshoeing through fresh powder, or simply tackling a chilly morning run, this baselayer works as a reliable foundation. The active fit keeps the fabric close to the body for efficient heat retention, while the stretch construction ensures you never feel restricted. The half-zip design lets you dump excess heat on strenuous climbs and seal it back up when the wind picks up. Because it wicks moisture rapidly, you stay dry and comfortable even during intense intervals, making it a versatile piece for fall and winter adventures.

Full specifications

• Product Type: Thermal Baselayer Top
• Gender: Men's
• Sleeve Length: Long Sleeve
• Neckline: Half Zip
• Fit: Active Fit
• Fabric Weight Category: Midweight
• Material Composition: 85% Polyester, 15% Elastane
• Thermal Technology: Omni-Heat™ Thermal Reflective
• Moisture Management Technology: Omni-Wick™
• Stretch Feature: 4-Way Comfort Stretch
• Seam Construction: Flatlock Seams
• Intended Use: Skiing, Snowboarding, Hiking, Cold Weather Activities
• Season: Fall, Winter
• Color: Blue
• Size: S
• Care Instructions: Machine Washable
• Breathability: High
• Quick Drying: Yes

Final note

Stay warm, dry, and unrestricted in the Columbia Midweight Stretch Long Sleeve Half Zip—your essential foundation for cold-weather performance.