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For extremely cold weather, Rothco ECWCS Gen III Mid-Weight Underwear Top (Level II) is the ideal foundation layer. The purpose of the cold weather top, which is a component of the Extended Cold Weather Clothing System (ECWCS), is to keep active-duty personnel warm and comfortable throughout the day. Constructed from a grid fleece material that wicks away sweat and breathes well, making it perfect for layering and preventing overheating and restriction of mobility. The undershirt anti-odor qualities ensure that it lasts for years of heated wear, and the zip collar lets it double as a turtleneck. Thumb holes help to keep the sleeves in place, and the long rear tail provides additional coverage.In the US, there is a law that NO underwear can be returned once the package has been opened even if you NEVER tried them on.Unfortunately, due to hygiene reasons we cannot provide a refund under the law. NY State Assembly Bill 2009-A10635 List Price: $54.99 Our Price: $43.99 Savings: $11.00 Availability:: Usually Ships in 3 to 5 Business Days Product Code: RTC-69070 Size*: First, Select Size Qty: Description Technical Specs Size Chart Rothco Gen III Military Midnight Navy Blue Thermal Zip Top 69070. For extremely cold weather, Rothco ECWCS Gen III Mid-Weight Underwear Top (Level II) is the ideal foundation layer. The purpose of the cold weather top, which is a component of the Extended Cold Weather Clothing System (ECWCS), is to keep active-duty personnel warm and comfortable throughout the day. Constructed from a grid fleece material that wicks away sweat and breathes well, making it perfect for layering and preventing overheating and restriction of mobility. The undershirt anti-odor qualities ensure that it lasts for years of heated wear, and the zip collar lets it double as a turtleneck. Thumb holes help to keep the sleeves in place, and the long rear tail provides additional coverage. Brand RothcoMen's CWCS Gen III Mid-Weight Underwear Top (Level II)93% Poly - 7% SpandexMicrobanAnti-MicrobialAnti-Odor DefenseBreathable, Moisture-wicking Grid FleeceCan Zip Collar Up To TurtleneckSleeves With ThumbholesElastic WaistColor Midnight Navy BlueImportedMPN 69070 ECWCS Mid Weight TopSizeBack Length (Inches)Chest Width (Inches)Sleeve Length (Inches)XS25.0020.0025.00S26.0021.0025.50M27.0022.0026.00L28.0023.0026.50XL29.0024.0027.002XL30.0025.0027.503XL31.0026.0028.00How to Measure: Measure from the high point of the shoulder to the bottom edge of the shirt to find the back length. For the sleeve length, measure from the shoulder point to the end of the cuff. The chest width can be found by measuring from armpit to armpit.Use the chart to find your measurement. Features Brand RothcoMen's CWCS Gen III Mid-Weight Underwear Top (Level II)93% Poly - 7% SpandexMicrobanAnti-MicrobialAnti-Odor DefenseBreathable, Moisture-wicking Grid FleeceCan Zip Collar Up To TurtleneckSleeves With ThumbholesElastic WaistColor Midnight Navy BlueImportedMPN 69070 Similar Products Rothco Gen III Level II Underwear Top 69060 Rothco Sand Underwear Top - 69020 Our Price: $43.99 Our Price: $43.99 You May Also Like Rothco Sand Underwear Bottoms - 69024 Carhartt Base Force Heavyweight Bottom - MBL121 Indera Raschel Knit Cotton Thermal Top 890LS Rothco Gen III Level II Mid-Weight Underwear 69050 Our Price: $37.99 Our Price: $49.99 Our Price: $14.95 Our Price: $44.99 Carhartt Base Force Heavyweight Crew Top - MBL110 Rothco Black Underwear Bottoms - 69034 Carhartt Base Force Midweight Bottom - MBL115 Rothco 69040 Gen III Level II Underwear Top Our Price: $49.99 Our Price: $37.99 Our Price: $34.99 Our Price: $43.99 Share your knowledge of this product. 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