Cornerstone - Short Sleeve Industrial Work Shirt. SP24 Durable and sharp, this work shirt can take the toughest conditions and keep employees looking great. Created to rigorous IL50 industry standards for lasting wear. Fabric/Style: 4.25-ounce, 65/35 poly/cotton with soil release. Features open collar with stays, melamine buttons and two pockets with pencil stall. Adult sizes: (Reg) S-6XL