A strap is one of those things that you don't think about much unless you need it and it's not within your grasp. In Yoga, straps are often used to facilitate Asanas like Supta Padangusthasana and Gomukhasana. Sometimes a teacher uses them in class in conjunction with other props such as a backless metal chair. Straps are also helpful in traditional stretching routines when your arms can't reach as far as you need, or to give a gentle, extra pull to a muscle group. No matter what you do for exercise, it's important to keep muscles flexible, and if you're serious about stretching, you may want to have at least a couple different straps. Your basic belt-like strap is good for most needs while a Stretch Out Strap enables you to do many stretches that would otherwise be impossible without a partner. When you list your favorite exercise tools, your strap may not be near the top of the list, but where would your fitness routine be without it?