FOOTMATTERSProfessional Boot & Shoe Stretch Spray – Softener & Stretcher for Leather, Suede, Nubuck, Canvas – 4 oz

This is an awesome product, it really works, I had a pair of blundstone boots , right aize but tight on the i step , was uncomfortable. Used this product and it stretched it to make it more comfy, I will highly recommend