If you're heavy get the double
I purchased the regular one to help with tailbone pain issues from sitting long hours.<br /><br />After about 6 hours, I could tell it helped a little, but I was still developing pain on my tailbone.<br /><br />I figure it is because I'm larger than average, at 300lbs. So, I purchased the double version. I haven't received it yet, so I can't tell you if it will work. I will update this after I try it out.
Rating: 3 stars