The latest Isobar campaign for sneakers in the US is causing shockwaves through the industry because of its awesome retrun on invesment.

The campaign has won 75,000 clickthrus, 8,000 phone opt-ins and 1,000 click to calls all for under $100,000, Mediacells estimates.

The campaign chose the mobile phone operator partners for their demographic reach, which is 13 - 19 year-olds from inner cities.