1) International: no secret here, as you can count the stores (more stores in India than China), from their web site www.crocs.com (international). The trick here is they expanded internationally at much early stage compared to Nike, etc., considering they are just a few years old. We can attribute partly to the globalization of economy and branding.
Keep in mind both CEO Ron Snyder and CFO Peter Case have significant international experience before joining Crocs. I think this is more relevant than just paying attention to their stock sales. As long as they can make me (shareholder) money, do I care how much money they make?