Please see alternate images above for SIZING and additional description information. --Cambion InsolesConstructed of a visco-elastic polymer for optimum shock absorptionProven effective in reducing heel strike trauma which can adversely affect other jointsOptimum shock absorption in a full length insoleHelps relieve foot, leg and low back painLatex FreeSizing Chart For Cambion Foot ProductsSizeMale Shoe Size Female Shoe Size Size A2,3,44,5,6Size B5,6,77,8,9Size C8,9,10 10,11,12Size D11,12,13N/AReorder NumberSizeUnit1124 1500APair1124 1501BPair1124 1502CPair1124 1503DPair1124 1504EPair