Real deal
Normally I run 2-3 miles and have no problems with blisters.  Last year I did a half marathon, got blisters at MM 4 and suffered for 4 days.  This year, using this product to train, able to go 8-10 miles 5 weeks straight with no problems what so ever.  Shoes and socks the same.  Awesome product.
Rating: 5 stars