the Waffle Knit Tank is a 100% cotton tank is perfect as a base layer or worn alone. the tank features taping at the neck and arm openings, a flat hem, and is constructed in a ribbed material. details flat hem 100% ribbed cotton fabric Model is 6’0, 140 lbs and wears a size medium Black Sleeveless Top With Ribbed Neckline, Casual Ribbed Tank Top For Streetwear, Stretch Ribbed Tank Top For Streetwear, Black Cotton Muscle Tee For Layering, Casual Ribbed Vest With Tank Straps, Black Cotton Muscle Tee For Everyday, Casual Tank Strap Tops For Streetwear, Casual Streetwear Tops With Tank Straps, Cotton Ribbed Sweater Vest For Layering