Diamonds are a shirt's best friend. Architect Quarter Zip combines quilted detailing with a luxuriously soft interlock fabric. Features: Diamond quilted heather blocking, Soft stretch fabric, 1/4 zip color block detailing with clean cover lock seams, Features stretch, chin guard zipper garage, open cuff, and An average of 12 recycled bottles in each garment. Fabric: Interlock: 40% polyester/40% recycled polyester/15% rayon/5% spandex Quilt: 80% polyester/20% recycled polyester. Complies with 16 CFR Part 1610, ASTM, CCPSA, Oeko-Tex Std 100, Prop 65.