These AEO Warming Base-Layer Flex Trunks listed at $17.95, but you can get pairs for $7.49 each during this sale at AE.com. Shipping is free on orders over $50, otherwise it adds $7. That's the best price we can find anywhere. This underwear has a 6" inseam and is made with a soft jersey material. Choose from ten colors in sizes S-XL while supplies last. Sales tax is charged in most states.