Per the Fabletics website: Made in our famous PowerHold® fabric, featuring InstaBoost Technology for the ultimate hold, with a high-rise waist to streamline your shape. Features Chafe-Resistant Moisture-Wicking UPF Protection 4-Way Stretch Fabric PowerHold® Our famous signature fabric, PowerHold® is designed with maximum compression to flatter your figure and hold you in without holding you back. Reach for this when you’re boxing, squatting, and everything in between. Questions? Leave a comment below!