Brooks Women's Racey 3.5" Shorts Imported Machine Wash 86% moisture-transfer polyester / 14% spandex for stretching easy of movement Waistband: 81% polyester/19% spandex Power Waistband that slims and stays put without a bulky drawstring Dual waistband pockets, one is sweat-resistant and can fit an iPhone6 Liner: 90% moisture-transfer polyester/10% spandex