Clean the insoles on a regular basis (twice a week). Remove the insoles from the shoes every night to let the shoes and insoles air out. Do not wear the same pair of shoes, three days in a row. Try different brands of socks or nylons. Apply a teaspoon of baby powder under the insole in the shoe and one on top of the insole in the shoe. Apply some scented hand or body lotion to your feet. Try soaking your feet in warm water and Epsom salts for about 20 minutes once or twice a week.
The Superfeet Yellow insole is designed to fit the exact heel-to-toe profile of a hockey or figure skate, with a one and a half inch ramped heel. This makes it an excellent fit in road cycling shoes as well. The Superfeet Black insole is designed to sit flat with no heel elevation.
Which insole is best depends upon the type of cycling shoe it is going into. Commuter shoes and Mountain Biking shoes are usually pretty tight fitting, so the Blue or Black is a popular choice. We also offer the Yellow for road biking shoes ( with an elevated heel ) which has a special feature designed into it. It has a "ramp" that slopes down from the heel to the forefoot and is designed for those kinds of shoes (you can usually tell by resting your hand on the inside to feel if the shoe has an inner slope).
The cycling shoe profile has a raised heel and ramp angle down to the toe. This is true in road cycling shoes as well as ice skates.
The Yellow insoles are designed to fit the inside volume and profile of hockey and figure skates. Skates are very narrow in the heel and mid-foot section, therefore that plastic cap of the Yellow product is designed to fit into it.