221B Tactical Equinoxx Stage 3 Ultra-Thermal Mock - Men's Black Medium. The Equinoxx Ultra-Thermal is the ultimate base layer for those who WANT and NEED a base layer that wears like a shirt but keeps you as WARM AS A JACKET Thermal...Wind-blocking...Breathable. HOW IT WORKS The "Grid" design structure in this amazing thermal base-layer is the latest technology to reduce fabric weight while increasing warmth and compressibility. This form of construction enhances both wicking efficiency and breathability by generating channels of targeted touch points that absorb and diffuse moisture vapor for faster evaporation. This winter don't sacrifice your safety and comfort for warmth. Be SAFE WARM AND COMFORTABLE with our Equinoxx Ultra-Thermal Specifications for 221B Tactical Equinoxx Stage 3 Ultra-Thermal Mock - Men's: Manufacturer: 221B Tactical Sleeve Length: Long Age Group: Adults Apparel Fit: Regular Gender: Male Color: Black Fabric/Material: 85percent Polyester 15percent Spandex Condition: New Warmth Rating: 15 F / -9.45 C Moisture Wicking: Yes Seasonal/Temperature Use: Cold Weather Features of 221B Tactical Equinoxx Stage 3 Ultra-Thermal Mock - Men's Temperature Rating: Sub 15 F / -9.45 C A patented 3-layer heat-laminated fabric Grid-Structure fleece inner liner for ultimate heat preservation Grid-Structure fleece offers maximum moisture-wicking Moisture-wicking torso area for those who wear body armor 4-way stretch for ultimate mobility Mock-neck design for increased neck protection Wind-blocking outer skin strategically placed to fight blistering cold winds Package Contents: 221B Tactical Equinoxx Stage 3 Ultra-Thermal Mock - Men's 221B Tactical 616621414968: Equinoxx Stage 3 Ultra-Thermal Mock - Men's Black Medium