Superfeet Blue Insoles Size:D one of the most comfortable

one of the most comfortable footbeds you're ever likely to wear

Original Birkenstock soft footbed

while Leawood detailing on the heel

The outside zipper offers easy access

yet secure fit

Superfeet Blue Insoles Size:D one of the most comfortableLong lasting support packed into a thinner, high performance insole to help improve the fit of a wide range of footwear. Durable Construction Superfeet insoles keep their shape, delivering reliable support and comfort for up to 12 months or 500 miles, whichever comes first Superfeet Shape The medium profile shape puts support right where you need it, but takes up less space in the shoe High Density Foam Closed cell foam supports and cushions the foot