Health > Clothing > Foot Care and Shoes Summary. This page offers a review by Gregory Johnson of the Spenco PolySorb shoe inserts. This review was originally written in February of 2008. A few days ago (5 February 2008) I purchased some Spenco PolySorb Cross Trainer Shoe Inserts from Lady Footlocker for about $20. The… Continue reading Spenco PolySorb Cross Trainer Shoe Inserts Money Savings Increased Energy Weight Loss