Adams USA Smitty Expanded Waist Pleated Baseball Umpire Base Pants polyester High Quality ComfortTECH 100 Moisture Management Polyester Shape Retaining Material Shrink and Wrinkle Resistant with Expanded Waistband Providing up to 2" of Expansion Ensuring a Comfortable Fit Pleated Base Pants Skew, Pill and Snag Resistant that Retains it's Shape Look like a Pro on the field