以下のところはどうでしょう?
Sports Authority
http://www.sportsauthority.com/home/index.jsp
636 6th Avenue New York, NY 10011
他にも店舗あり
http://www.sportsauthority.com/corp/index.jsp?page=storeLocator&state=NY
Paragon Sports
http://www.paragonsports.com/Paragon/Shop?
867 Broadway, New York, NY 10003