Portola Valley School District Portola Valley CA USA
The slider adjustable mask has two layers, organic cotton inside, hygienic microfiber outside, and it fully adjustable with a looping strap and slider. Please note: these masks are not for use while swimming. For more info agonswim.wiki.zoho.com/Face-mask.html
Fully front lined means that the entire front panel of the item is lined. (Please note that if you are ordering a light colored item, we strongly advise that you order fully front and back lined to avoid transparencies.)
100% polyester 84 grams per square meter.
Woven 100% organic cotton 125 grams per square meter.
Speedline is 47% polyester, 53% PBT (texturized polyester with natural stretch similar to spandex), 170 grams per square meter. This fabric is chlorine resistant and has two way stretch, although not as much stretch as PolyFlex. Speedline is sleek to the touch.