Strong and sturdy----EEIEER aerator shoes feature a sturdy plastic base that provides unsurpassed heel support. Four adjustable nylon straps wrap the ventilation shoes close to the foot - these shoes remain the same on firm and soft ground. New and improved design----These ventilation shoes are our best model so far. We've added extra elastic straps to maximize stability! The straps will attach the shoes to your heels for extra durability. A green, magnificent lawn----A total of 26 high-performance spikes pierce the ground while walking, breaking up compact ground and maximizing airflow and water absorption. The health of your lawn is improving from the ground up! One Size Fits All----These aerator shoes are perfect for everyone! Whether your feet are big, small or somewhere in between, these shoes fit like a glove. They can easily fall under both everyday shoes and under work boots. Improve muscle tone----Your yard is not the only thing that will look better. You will also get a killer muscle definition! Running with the aeration shoes provides great training for your calves and thighs. You will not even notice that you enter Sweating is advised.