Panache lingerie and swimwear use UK underband and cup sizing. Please use this size chart to convert to international sizing. 
 
The Panache Endurance Non Padded Underwire Sports Bra - the perfect solution for those seeking maximum support without added padding! This high-performance sports bra boasts excellent bounce control and a padded underwire casing. With double-lined fabric, and smoothing back panels, this lightweight sports bra also features the longer underbust band. Plus, it comes with a J-hook option for added versatility. Say hello to your new favorite sports bra!