THESE ARE EXTREMELY COMFORTABLE. THEY MAKE IT FEEL LIKE YOU ARE WALKING ON WATER. IT IS A UNIQUE REFRESHING FEELING! THESE DO KEEP YOUR FEET FROM THE PAIN OF STANDING OR WALKING A LOT. ALSO HELPS REDUCE THE FRICTION ON THE SOLE OF YOUR FOOT THAT CAUSES CALLUSES AND DRY SKIN. I DON'T KNOW THE LONG TERM BENEFITS BUT I AM GOING TO FIND OUT. OVERALL THESE ARE OF THE HIGHEST QUALITY AT A GREAT PRICE. I DO RECOMMEND AND WELL DONE TO THE SELLER!