Amazon has the 2-Pack Under Armour Tech 6" Boxerjock Men's Boxer Briefs (Select Colors) for $26 - $13 off coupon (check "Apply Coupon") = $13 with free shipping on $35+ or with Prime.

• 2-Pack Under Armour Tech 9" Boxerjock Men's Boxers for $13
• 3-Pack Under Armour Cotton 6" Boxerjock Men's Boxers for $15