London-based Ground Zero is minding the gap between slogan tees and ready-to-wear. Launched in Hong Kong by brothers and graphic artists Eri and Philip Chu, the cheeky label is all about post-ironic playfulness. In their own words: “The decay of wealth doesn’t stop us from enjoying life and fashion.” Nor does it stop them from collaborating with other designers, including South Korea’s Juun J. It’s looking up for Ground Zero.