We've been hyper focused on a few things. 1. #Overmolding 2. Use No Glue 3. Feel like you're Barefoot.
These things have guided us over the past 3 years on our quest for a one-piece wonder, that's machine washable, and has the best colors available. We won't stop evolving and simplifying and perfecting what we're making. Mechanical Engineers love this sh!t.
In the Spring of 2011, you'll be able to buy Amphibian 2.0 which has a widened toe box, Improved TPU Sole, and it's Made in America.