Get 10 pairs of women's undies for $35 when you add 10 pairs to your cart and log into a free Real Rewards account at Aerie. Otherwise, the price for six pairs for $25. Shipping is free! The promotion includes these Aerie Sugar Cookie Lace Shine Boybriefs, which list at $8.95. The price for 10 pairs falls from $89.50 to $41.60 in your cart. Then the price falls to $35 when you sign in as a Real Rewards member. This deal is only available at Aerie. Sales tax is charged in most states.