I am looking for free shoes to give to poor kids in colombia where i have a charity . help ? where to call?

a friend and I have created a charity in colombia to provide kids from 8 to 18 years old wuth sports clothes or shoes so they can practice sports because they are from the poorest places in colombia ! my friend is a ex minor league baseball player and he teaches then baseball and other sports and keep then away from the streets and getting in trouble unfortunately an only afford to buy and collect certain amount of shoes and sports items like gloves , shoes tshirts shorts etc. and i am looking to collect a lot to send to then and make a lot kids happy i need help but i dont know where to call or where can i get stuff ! anyone reading this if you have any good items for sports or shoes etc i live in nyc and u can get in touch with me @ julianpiedrahita@yahoo.com