Coldpruf Platinum Mens Top Black Medium 95A MD BLACK. 2 layer engineering traps air between layers providing a natural barrier of warmth. Tagless feature flat seams comfort waistband front & back rise on pant. 100percent CPT performance polyester on the inside 70percent polyester/30percent merino wool on the outside. For medium to high activity very cold to extreme cold temperatures. Specifications for Coldpruf Platinum Top - Men's: Manufacturer: Coldpruf Men's Clothing Size: Medium Age Group: Adults Apparel Fit: Comfort Gender: Male Color: Black Fabric/Material: Merino Wool/Polyester Style: Platinum Men Top Sleeve Type: Long Neckline: Crew Neck Tag Free: Yes Odor Control/Anti Bacterial: Yes Package Contents: Coldpruf Platinum Top - Men's