Like a second skin. Pureness styles are made from the softest, sustainable TENCEL Micromodal and sewn by hand in Switzerland. The softest touch, modern cut and perfect fit, yet temperature-regulating and breathable for maximum comfort. This is urban, modern Pureness underwear from Zimmerli of Switzerland. TENCEL Modal is a wonderful fiber that is made from sustainably sourced beech wood and is known for its exceptional softness, pleasant feel and high flexibility. Store the loose-fitting boxer briefs or boxer shorts for men with a concealed elastic waistband and ultra-comfortable fit now.