Hi Have just got some more trainers for my 15 year old son size 14 the lacoste are big enough but not the Nike. He is now looking at Boxfresh I am unsure whether or not to order size 14 or go for 15 (dont want to end up paying loads of return postage as hav ealready spent enough! can you advise how boxfresh measure up? are they larger or smaller than Nike? Need to be sorted before next Friday as going on hoiday! Many thanks