I have 2 pairs of underwear from Allbirds. At first they are extremely comfortable. I will give them that, however the underwear only last a few months while only wearing the underwear once every other week or so and washing them on delicate. I wont be purchasing them any longer or asking anyone to purchase them for me for a gift. When customer service was contacted, they said they would give me a 10% off coupon towards another pair. I said so i get 10% off a $24 dollar pair of underwear that wont last a year and you wont replace them? She said thats all they could do. Dont waste your time and if you do, good luck.