Dual Gel Men's Insoles, Blue, OSFA, 1 pr, QC94649 Sale! This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Compare to Dr. Scholl's. Dual gel insoles are designed with a softer gel to cushion and absorb shock and a firmer gel to provide added support. The velvety top layer of fabric keeps feet cool, comfortable and dry. Trim to fit.