Click on the date that is highlighted yellow. Then click on the button that displays the time of the class. Proceed to check out. If you would like to purchase a yoga mat: On the middle top left section, under, where it say's "Add to your appointment" click on the small square box next to "Yoga Mat" to add your item at check out. If you have a promotional code click on the yellow button "Redeem Coupon." Add your code and proceed to schedule your appointment.