Designed primarily for tighter fitting footwear, Superfeet BLUE is our most versatile product. BLUE provides excellent biomechanical support for the widest variety of foot shapes. Featuring Agion antimicrobial top cover treatment to reduce bacteria and help prevent foot odor.

Ideal for feet with low to medium arches that cannot tolerate maximum support.

Recommended footwear: Cleated athletic footwear, running and hiking shoes, and all types of casual and dress shoes.

Sizing:

Men's 5.5-7/Women's 6.5-8

Men's 7.5-9/Women's 8.5-10

Men's 9.5-11/Women's 10.5-12

Men's 11.5-13/Women's 12.5+

Questions

Q: Why can't I use Blue with Gore-Tex / How can I wear Blue in my Gore-Tex boots?

A: The support ridges in the bottom of the Blue cap can grind into the Gore-Tex boot lining. It is recommended that Superfeet be trimmed so they move 2mm inside the shoe, and this friction eventually makes the ridges slice through the lining. It doesn't happen every time, but it happens often enough for us to make a note in our literature. There is a shoe accessory called a 5-iron that corrects this problem. A 5-iron is a 1/8 inch thick insole-shaped flat sheet of foam/rubber. It comes in two sizes: small and large. Superfeet size B-D are small and E-G are large. We do not make the material that 5-irons are made of, but we do cut them from a flat sheet of material. The material comes from a company in Salem, MA and is an EVA Foam and SBR Rubber blend. You should place it between the bottom of the insole and the shoe, and it will keep the ridges from making direct contact with the Gore-Tex.