These Asics speed 3 are very light which aids great comfort!! You almost feel you have a comfortable training shoe on, In the past every tennis shoe seemed a little bulky to me- this is due to the strength & technology that goes into the shoe to cope with the lateral stresses you encounter on the tennis court & in my opinion sacrificed on comfort because of this...Not any more it seems asics have got this just right..All the necessary tech & strength but retaining great comfort "The perfect package"