Seamless: Seamless knit technology reduces friction from stitches for greater comfort. 3D compressions support core muscles, reduce muscle vibration and energy loss, enhancing your performance Premium Fabric: Our thermal underwear set made of premium soft polyester-nylon blend fabric and high quality self-heating yarn that retaining body heat for comfortable warmth in cold condition Moisture Wicking: This womens thermal base layer placed mesh panels align with sweat zones that help sweat dry fast, retains heat, and enhances breathability for dry comfort Flexibility: 4-way stretch fabric provide stabilizing support during activity, high stretch fabric around knee and elbow joint ensuring flexibility during outdoor activity and slim fitting design blocks cold air entry Occassion: Ideal thermal base layer set for versatile activities including skiing, hiking, mountaineering, running, cycling, hunting, and fishing – delivering reliable warmth and comfort wherever you go ATTRACO Thermal Underwear Set for Women Long Johns Warm Base Layer Set for Winter Cold Weather Long Sleeve. Avaivable Color: Gray/Blue/Purple. About Our Products: 1. Seamless: Seamless knitting reduces rubbing stitches, making you feels comfortable. Anti-static prevents dust sticking in from dry fall and winter so that your thermals stay clean for all day long. 2. Premium Fabric: Our thermal underwear set made of premium soft polyester-nylon blend fabric and high quality self-heating yarn that retaining body heat for comfortable warmth in cold condition. 3. Moisture Wicking: This womens long johns placed mesh panels align with sweat zones, while 3D compression helps sweat dry fast, retains heat, and enhances breathability for dry comfortt. 4. Flexibility: 4-way stretch fabric minimize friction and provide stabilizing support during activity, high stretch fabric around knee and elbow joint ensuring flexibility during outdoor activity. 5.Occassion: Ideal thermal base layer for diverse activities including skiing, hiking, mountaineering, running, cycling, hunting, and fishing – delivering reliable warmth and comfort wherever you go.