Smart-Security Function: Anti-dust,Keep Warm, Printable, Washable, Reusable, Insertable with Medical mask pad/filter Shell fabric: Air layer fabric in about 95% polyester 5% spandex is about 220gsm Lining fabric: Super soft and 100% polyester quick-dry mesh cloth in about 140 gsm Binding Tape fabric: Interlock fabric in about 95% polyester 5% spandex in about 200 gsm Accessories: Elastic rope/rubber adjustable buckles and plastic Beads, hidden adjustable nose clip makes the upper rim of the mask closer to face and nose without air space

HKUST Function: Anti-dust,Keep Warm, Printable, Washable, Reusable, Insertable with Medical mask pad/filter Shell fabric: Air layer fabric in about 95% polyester 5% spandex is about 220gsm Lining fabric: Super soft and 100% polyester quick-dry mesh cloth in about 140 gsm Binding Tape fabric: Interlock fabric in about 95% polyester 5% spandex in about 200 gsm Accessories: Elastic rope/rubber adjustable buckles and plastic Beads, hidden adjustable nose clip makes the upper rim of the mask closer to face and nose without air space

Bolttech Function: Anti-dust,Keep Warm, Printable, Washable, Reusable, Insertable with Medical mask pad/filter Shell fabric: Air layer fabric in about 95% polyester 5% spandex is about 220gsm Lining fabric: Super soft and 100% polyester quick-dry mesh cloth in about 140 gsm Binding Tape fabric: Interlock fabric in about 95% polyester 5% spandex in about 200 gsm Accessories: Elastic rope/rubber adjustable buckles and plastic Beads, hidden adjustable nose clip makes the upper rim of the mask closer to face and nose without air space

Function: Anti-dust,Keep Warm, Printable, Washable, Reusable, Insertable with Medical mask pad/filter Shell fabric: Air layer fabric in about 95% polyester 5% spandex is about 220gsm Lining fabric: Super soft and 100% polyester quick-dry mesh cloth in about 140 gsm Binding Tape fabric: Interlock fabric in about 95% polyester 5% spandex in about 200 gsm Accessories: Elastic rope/rubber adjustable buckles and plastic Beads, hidden adjustable nose clip makes the upper rim of the mask closer to face and nose without air space

Function: Anti-dust,Keep Warm, Printable, Washable, Reusable, Insertable with Medical mask pad/filter Shell fabric: Air layer fabric in about 95% polyester 5% spandex is about 220gsm Lining fabric: Super soft and 100% polyester quick-dry mesh cloth in about 140 gsm Binding Tape fabric: Interlock fabric in about 95% polyester 5% spandex in about 200 gsm Accessories: Elastic rope/rubber adjustable buckles and plastic Beads, hidden adjustable nose clip makes the upper rim of the mask closer to face and nose without air space

Function: Anti-dust,Keep Warm, Printable, Washable, Reusable, Insertable with Medical mask pad/filter Shell fabric: Air layer fabric in about 95% polyester 5% spandex is about 220gsm Lining fabric: Super soft and 100% polyester quick-dry mesh cloth in about 140 gsm Binding Tape fabric: Interlock fabric in about 95% polyester 5% spandex in about 200 gsm Accessories: Elastic rope/rubber adjustable buckles and plastic Beads, hidden adjustable nose clip makes the upper rim of the mask closer to face and nose without air space