These masks are perfect for HOT weather like here in Arizona.  ALSO, can be worn to work out in.  Ligfhtweight + Effective
Outer Layer-ProCool® Cotton Sports Jersey Antimicrobial Silver Fabric with SILVADUR™ & TransDRY™ Technology 
Inner layer-ProECO® Organic Cotton Interlock Antimicrobial Silver Fabric with SILVADUR™ 
"6.5 x 7.5-8" Approximately 7" Elastic Approximately
Machine wash delicate.  Put mask in lingerie bag.  If needs ironing, use a cloth in between mask and iron.  No dryer.