This is a sports mask from BRIEFING. * Made with seamless "WHOLEGARMENT®" knitting technology, this knit mask is knitted in one piece from the mask portion to the ear straps without any seams. * The three-dimensional structure is designed to be breathable and comfortable to wear. * The material is infused with silver ions, which have antibacterial and deodorizing effects, preventing the smell of damp laundry. * It can be washed at home. ✅ Lowest price on Mercari (no price reduction) Instant purchase is welcome. #briefing #briefing #mask