Mesh zipped air ventsShaped leg panellingUnder panelling for comfort fit Fabric Outer main fabric: 100% Nylon Taslon. Contrast fabric: 92% Polyester, 8% Elastane (brushed). Inner pant: 90% Polyester, 10% Elastane. Inside waistband: 100% Polyester waffle. Pocket mesh lining: 100% Polyester Weight Outer: 220gsm. Inner pant: 200gsm. Inside waistband: 145gsm. Pocket mesh lining: 70gsm