Its a one size fits most or 6 7/8" - 7 1/2" sized helmet

dry & light Pittard's sheepskin leather delivers extreme softness with extra wrap around for an ultimate feel Perforated fingers increase breathability Elastic wristband & TPR closure strap provide a custom fit

and guylines

Premium sheepskin leather for textured grip and control Low-profile overlay on the back offers a lightweight fit Expansion gusset between thumb and palm for grip Hook-and-loop strap provides an adjustable fit Fabric: 42% sheepskin leather/25% nylon/23% polyester/5% silicone/5% neoprene

Facemask fits S

New New Era Cap Co. Inc. Adult MLB Washington Nationals Cap Md/Lg Navy/Red/White Medium/Large:Navy/Red/White Its a one size fitsPolyester Wool fitted Authentic Baseball Cap as worn by all players during Spring Training and Batting Practice. Cool Base technology wicks moisture away from the head Team logo embroidered on front of cap Officially licensed by Major League Baseball