The first cap in the BMW M Collection with Flexfit® technology: The classic cap fits every shape of head. With high-quality metal BMW M logo and six holes for ventilation. Water-repellent hybrid DELTA fabric, structural fabric on front and underside of peak. Color: Black Material: Hybrid DELTA fabric: 92% polyester, 8% elastane, front and underside of peak: 100% polyester Details: Metal BMW M logo Structural fabric on front and underside of peak Flexfit® technology fits every shape of head Size: 56 to 59 cm (head circumference) .