Swiss luxury house Bally has partnered with DKMS, the world's largest bone marrow donor center, in the fight against Leukemia. Last night, the brand hosted an exclusive preview of their sporty Spring 2011 collection, along with DKMS Americas co-founder Katharina Harf, in the Madison Avenue Bally boutique. Guests were invited to shop the collection of leather trimmed canvas totes, color blocked wedges, and an array of leather goods for men. The particularly nice part? A hefty 20% of the evening's sales was donated to DKMS to help recruit bone marrow donors for Leukemia patients. DJ Mia Moretti and violinist Caitlin Moe entertained the chic crowd with remixes of Robyn, MGMT, and Yelle dance tracks as models clad in minimalist, floor length dresses from the line floated about the space. Not a bad way to spend a Thursday evening.