100% Authentic. Listed sizes are Shipping Now. *We practice a 3-business-day grace period on all orders received before shipping them out.* We offer 2 kinds of shipping methods: 1) US $43.00 for Expedited Shipping (approx. 3-5 business days), and US $33.00 for each additional item, 2) US $35.00 for Airmail Shipping (approx. 7-10 business days), and US $30.00 for each additional item.