WHAT IS PREORDERING? It is producing the exact quantity, in the right quality, at the right price. 1/ You make the purchase before the item is produced. So we can then launch the production, upon your request, in your chosen size. 2/ There is no excess stock, no waste, no unsold items: all to the good of our planet! 3/ You wait a little... but are then even happier when you receive your order!