Gravity Defyer Gdefy Comfort Veroshock Mens 8.5 Walking Shoes
One pair as shown no insoles
Estate find
In my opinion the soles look like they were never worn 

From the manufacturer:

Each Gravity Defyer comfort shoe is designed with our patented VersoShock Technology, consisting of springs hidden in each sole to absorb harmful shock while returning positive energy to the feet, knees and back. 
Weighs 1 pound 11 ounces before being packed to ship