Wore out in 3 wearings and slipped into my shoes from the first.
UPDATE: After my initial one-star review I was contacted by customer service, who gave me tips on how to put the product on my foot - Im so surprised to say I have had no slippage since! I wish they didn't pill and stretch out so easily and quickly, but they are still wearable and now that I know how to wear them they stay on. I am quite happy.