New Balance 574 Sonic Pack Spring/Summer 2011 words_Brandon Richard New Balance gives us a look at a Spring/Summer 2011 collection of the 574 model, featuring their seamless Sonic Weld technology. The synthetic upper of each shoe is bonded into one piece with heat an pressure, as opposed to a stitched construction. Seen here are white, grey and burgundy colorways that we can expect to be available at retailers sometime in February. New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011New Balance 574 Sonic Pack Spring/Summer 2011 via New Balance Live