This functional long-sleeve shirt with crew neck is antistatic and antibacterial; the pants drain moisture in the most effective way thanks to the high portion of silver threads and regulate the body temperature; also available in plus sizes of up to three times extra large. Material: Interlock with silver threads; outside: 100% cotton, inside: 66% cotton, 22% polyester, and 12% silver fibres. Fibre/Yarn contains a Biocidal Product. Contains “silver sodium zirconium hydrogenphosphate – CAS-# 7440-22-4” built into the fiber polymer to counter the settlement and growth of micro-organisms and the development of odour in/on the treated.