This pillow is here for a limited time! Only while supplies last. This pillow is filled with care in Canada. The shell is soft 500 thread count cotton. The fill is 625 loft duck down. All weights of this pillow are fairly malleable and will sink down with the weight of the head. The Soft version is flatter as it has the least amount of fill. Medium is a bit fuller, and Firm is the most puffy, with the most amount of fill. Soft is best suited for front sleepers. Medium and Firm are great for front and back sleepers. Note that King size pillows are more sinky than Standard or Queen, as they are quite long. There's more room for the fill to spread out to the sides when laid on.