At Amazon, buy one pair of ExOfficio men's or women's underwear
, and get 50% off
a second pair
. (Discount applies in-cart.) Plus, Prime members bag free shipping
on all orders. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping starts around $5.) Before discount, men's boxer briefs start around $16 and women's full cut briefs start around $12.