These 12 denier gloss tights have a reinforced toe and cotton gusset for maximum comfort. There is an inbuilt medium control brief for support. See the sizing chart in the photos to find your best fit. 82% Polyamide; 15% Elastane; 3% Cotton Gentle machine wash using a washbag or hand wash in warm water. Do not bleach, do not tumble dry, do not iron, do not dry clean.