Need New Underwear? Aerie Underwear Sale is Here!February 25, 2017 by SMFM Leave a Comment Save on Underwear! Head over to Aerie and score Underwear for as low as $2.69 – regularly up to $12.50! Simply add a pair of clearance panties to your cart and use promo code TAKE10 at checkout. Plus, get FREE Shipping on orders over $50.