The best core flexibility for yoga than Karate or any other form of exercise is that it focuses on the core. You breath in before you do anything else and stretch to get the best results!

Side ways back thigh stretching which is also good for men or men who want to become younger and to stretch.
My final picture of today is the back thigh side ways stretching that sits at the bottom. It works well if you want to begin One Eighty. I advise men to start with this one!