Head Ladies size 6.5 worn indoors once As you move fast in the SPRINT PRO 3.5, you'll be enjoying the lightweight comfort of a shoe made with a new engineered mesh and the new tongue material, as well as a cooling system that promotes breathability. The upgrade also includes a new TPU heel counter, and a design refresh. Lightweight performance meets ultra-modern, breathable comfort in a women’s shoe designed for attacking tournament players looking to move fast around the court.