Size is CF420, was tried on briefly with socks.
From the website: "With state-of-the-art Footmapping® technology that identifies your arch type and the areas you put most pressure on , the CF420® Dr. Scholl's® Custom Fit Orthotic Inserts® provide all-day relief from tired achy feet. The CRADLEFLEX® SUPPORT SYSTEM helps reinforce and stabilize your arch. It has a soft top cloth and exceptional heel cushioning to help relieve your foot pressure. ¾ length, so no trimming required. Fits easily in most shoes: casual shoes, dress shoes, works shoes and sneakers."