Adams USA Smitty Expanded Waist Flat Front Baseball Umpire Combo 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 Flat Front Combo Pants Skew, Pill and Snag Resistant that Retains it's Shape Look like a Pro on the field