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 - and temperature-regulating and breathable for maximum comfort. This is urban, modern Pureness underwear from Zimmerli of Switzerland. TENCEL™ Modal is a wonderful fibre that is made from sustainably sourced beech wood and is known for its exceptional softness, pleasant feel and high flexibility. Shop these loose-fitting boxer briefs or boxer shorts for men with a concealed elasticated waistband and ultra-comfortable fit now.