Features:- Slim Technologies:Oeko-Tex®:- ODLO´s Functional Underwear bears the Oeko-Tex® label ´´Confidence in Textiles´´, which certifies textiles tested for harmful substances in accordance with the Oek-Tex Standard 100.Our product meets the current human-ecological requirements:no carcinogenic ingredients, no formaldehyde, free of allergy-causing dyes, skin-friendly pH value.Warm:- Highly functional sportswear with excellent thermal insulation that keeps the body warm when it´s cold outside.With the fabric´s effective moisture wicking properties, the skin is kept dry and warm.Warm thermal quality is ideal for all winter activities.Care:- Machine Wash Warm [40°].- Do Not Bleach.- Do Not Tumble Dry.- Do Not Iron.- Do Not Dry Clean.