Question: what is the difference between ultraboost and ultraboost st?
Answer: Adidas Ultra Boost ST General Info The Adidas Ultra Boost ST is the beefier brother of the Adidas Ultra Boost shoe. It's basically the stability version of the Ultra boost, which means it's heavier (about 14% heavier), it has greater support, and it has thicker fore-foot and rear-foot stack heights (about 3 mm more).