Workrite 277TK67HGMD-00 Flame Resistant 6.7 oz Tecasafe Plus Knit Long Sleeve T-Shirt, Ribbed Cuff, Medium, Heather Gray Long-sleeved heather gray t-shirt with fully finished ribbed collar and cuffs 6.7-oz.Tecasafe Plus fabric for resistance to flash fire and electric arc 48% modacrylic / 37% lyocell / 15% para-aramid Side gusset inserts for added mobility Raglan sleeves for comfort