Free stride, free mind. These running crops are made of Nulux fabric that's so smooth and lightweight, you might feel like you can run forever. Designed for Run. Intended to sit below calf. Back pocket. Continuous drawcord is easy to cinch and won't get lost in the wash. No inseam for a smooth stride. Weightless Coverage, NuluxTM Fabric. Body: 84% Nylon, 16% Lycra elastane. Inner waistband: 89% Nylon, 11% Elastane.