Do you have a lack of support?
The most popular replacement for unsupportive insoles is the Birkenstock Blue Arch Support. The Blue Arch Supports are available for both flat shoes and shoes with moderate heels (up to 1-1/2 inches) and in three widths. The Blue Arch Supports are designed to support the medial, lateral and metatarsal arches.
If you need a full length insole then the Birko-Sport 2-Part Insole might just be for you. This insole was designed specifically for sports activities. The Birko-Sport insole features a full-length shock-absorbing footbed with a distinctive toe grip for improved circulation. The Birko-Sport also provides support for the three major arches.
For lovers of the Finn Comfort footbed you might discover that you can use a Finn Comfort replacement footbed in place of your non-Finn Comfort insole. This is a good option for shoes with sufficient height to accommodate the extra thickness of the Finn footbed. If you’re familiar with Finn Comfort footwear you know just how well the footbeds support your feet and how good they make you feel.