This article is in French.
Pierre-Alexandre Fournier, a graduate of Polytechnique, young entrepreneur and co-founder of Hexoskin, is showing off his baby: a shirt. It looks like an ordinary sports shirt, like a cyclist or runner would weare, except that integrated into the fabric of the garment are sensors. Using a battery that weighs 90 grams, about as much as an iPod nano, the shirt in question enables you to track how many calories you use up, the quality of your sleep, and your cardiac activity, day or night.
While Fournier explains the shirt he's wearing, we can see his heart beats on the screen behind him.