Theory Women's Apparel Size Chart. The style ship has sailed with these flared pants from Theory™. Belt loops at the waistband. Zip fly, hook tab closure. Four-pocket construction. Flared leg. Body: 62% linen, 36% viscose, 12% elastane. Pocket lining: 100% cotton. Dry clean only. Made in the U.S.A. and imported. Measurements: Waist Measurement: 26 in. Outseam: 44 in. Inseam: 34 in. Front Rise: 9 in. Back Rise: 14 in. Leg Opening: 22 in.