Spanx Oncore Firm Control High Waist Briefs Black Simply Be Spanx Oncore High Waist Brief Spanx OnCore High Waisted Brief SS1815 PS1815 Walmart.com Spanx Oncore High Waist Brief. Looking for a total transformation? Youre in the right place. This sculpting shaper is lightweight and powerful, featuring fully bonded front panels for a tabletop flat stomach and edge bonded side panels for comfortable, squeeze free slimming. Style No. SS1815 SIZE & FIT Level 3: Sculpting A Super Firm Hug Fit tip: We recommend putting on your high waisted shapewear first, then placing your bra over the waistband for added security. DETAILS Comfortable sculpting power with less bulk Bonded tummy panel flat out flattens Side panels offer squeeze free slimming and easy movement Hook & eye closure for ease when nature calls