Zappos.com is proud to offer the Callaway - Magna (White) - Hats: Tee off in the Magna cap from Callaway Golf and never lose those pesky ballmarkers again! ; Features stitched-on *Magna Mark Technology. A magnetic field area on the side of bill conveniently holds your ballmarker. ; Lightweight microfiber construction. ; Semi-structured design for comfortable fit. ; Raised Callaway embroidery front with a pre-curved contrast stitched visor. ; Adjustable hook-and-loop strap. ; Made of: 60% nylon, 40% cotton ; Circumference: 23.75 ; Circumference: 23 3 4 in