SMITTY Pro-Performance Umpire Hat (4-Stitch or 6-Stitch) High Performance Woven Fabric Durable Checkered Pattern Low profile fit with structured panels A 4-stitch hat features a shorter bill, making it perfect for plate umpires who need to prevent interference with their mask. The 6-stitch version has a longer bill, offering enhanced sun protection—making it a preferred choice for base and field umpires. Ensuring the correct fit: What you need: A soft measuring tape (like for sewing) — or A string + ruler as an alternative Steps: Wrap the tape around your head about ½ inch above your eyebrows and just above your ears — this is where the hat will naturally sit. Make sure the tape is snug but not tight. You should be able to slide a finger underneath. Note the measurement in inches. Match the measurement to the size chart: Head Measurement (inches) Hat Size 21¼″ – 22⅜″ Small (6 ¾ – 7 ⅛) 22⅜″ – 23½″ Medium (7 ¼ – 7 ½) 23½″ – 25″ Large (7 ⅝ – 8)