The NYC based retailer, Of a Kind has a lot to celebrate. They just turned four and they just collaborated on their 250th designer collaboration for this milestone. Of a Kind collaborated with the brand ‘Proper Assembly’ that just launched their own line in September 2014. Proper Assembly’s Nate Poekert and Becky Shim Paguia want to design bags that are hard to come by: affordable, functional and really cool bags. And they make a good point! Where else will you find a brand that focuses on the adult version of the backpack? They describe the bag they designed for Of a Kind as ‘if the drawstring backpack just grew up.’ They had a vision about reinventing the perception of drawstring gym bags and this is the result: a navy colored bag with veg tanned leather detailing. Get the Of a Kind x Proper Assembly Anniversary Collaboration bag for $125 apiece.