Champion Elite Men’s Boxer Briefs – Costco Sale! by Rhonda March 22, 2023 11/19/16. © Frugal Hotspot *SALE UPDATE* 3/22/23. Champion Elite Men’s Boxer Briefs from Costco is designed with Double Dry Technology with X-Temp to keep it cool. There’s built-in support and … 0 FacebookTwitterPinterestEmail