Mine arrived pitifully flat in a sealed package; but it was amusing to watch them puff-up after the seal was broken. They quickly became very full and fluffy, but to my delight, substantial. I experienced absolutely no problems. Theyre beautiful and comfy after weeks of hard use and cleaning. I say hard use because Im currently experiencing a nasty flare from an auto-immune disease which keeps me close to my bed. I sleep on these pillows, and prop-up on them during the day. Theyve been so helpful for me that I got a set for my daughter. I plan to buy more!