11.3oz High Cotton 3/1 Twill Slight Stretch Denim Fabric | Indigo Key Features High cotton base: 99% cotton as main material with only 1% spandex for slight stretch. It largely retains the natural texture and breathable, skin-friendly feel of pure cotton denim. Classic 3/1 twill weave: Standard 3/1Z right-hand twill construction with neat, clear weave lines. It delivers authentic denim texture and a firm silhouette, the classic weave structure for denim. Medium-weight denim