The industry norm on this product is for the pants of the set to be approx. 2 sizes smaller than the jacket. This product will therefore be sold based on the jacket size. For example, if you place an order for a size 34, please be aware that the jacket size will be 34 and the pants size will be 30. 
Kindly ensure that sizing has been established correctly before placing an order with us as sets cannot be broken up and will always be sold as per the above.