Through tonight only, shop all Undies at 10 for $32 at Aerie.com, making each pair $3.20. Normally priced between $7.50-12.50, that's a savings of up to 74% for the quantity! Shipping is $7 or free with $50. Stock up on single pairs, like this Aerie Lacy String Thong, normally $7.50, or mix and match with other styles, like this String Bikinis, usually $7.50 apiece as well. We couldn't find either style anywhere else for less. The thongs come in three colors and feature a low rise. The bikinis come in five colors and also have a low-rise. Sales tax is charged in most states.