2XIST Essential 3-Pack No Show Briefs 100% Cotton Machine wash cold. Non-chlorine bleach as needed. Tumble dry low heat. 100% Cotton Machine wash cold. Non-chlorine bleach as needed. Tumble dry low heat. Small Waist: 28-30", Medium Waist: 31-33", Large Waist: 34-36", Extra Large Waist: 37-39"