abstract DAMJAN ˇSKULJ University of Ljubljana, Slovenia A new approach to define a product of capacities is presented. It works for capacities that are in a certain relation with additive measures, most often this means that they are somehow derived from additive measures. The product obtained is not unique, but rather, lower and upper bound are given. Keywords products of capacities, capacities, non-additive measures, increasing capacities, distorted measures