Which of the following is recommended for replacing footwear?

Athletic shoes will lose their cushioning after one to two months but will remain useful if clients replace the innersoles on a regular basis.

Athletic shoes will lose their cushioning after three to six months of regular use (approximately 350 to 500 miles or 560 to 800 km of running) but should be replaced sooner if clients see the bottom of the shoe wearing down unevenly.

Athletic shoes will lose their cushioning after seven to eight months of regular use (approximately 500 to 700 miles or 800 to 1.125 km of running) but should be replaced sooner if clients see the bottom of the shoe wearing down unevenly.

Athletic shoes will lose their cushioning after a year of regular use (approximately 700 to 900 miles or 1,125 to 1,450 km of running) but should be replaced sooner if clients see the bottom of the shoe wearing down unevenly.