The option to select reversible gel is not working. EDITED: I figured out the options, never mind. Works fine, thank you. Ordered another!
AND...just want to add my experience with this topper. This is the 4th I've purchased from Woot. I love them very much. They are very heavy so when you are handling them, try not to grab with your fingernails or fingertips. Use two hands and strongly, yet gently, grip the topper to handle without tearing the foam. Not to say that it will easily tear, but if you're not careful, you can put a dig into the foam. I like to turn each of ours every single time I change the sheets, flipping end-to-end, just to help rotate the usage/pressure points.
I read someone's comment about the topper being a bit stiff when you first get into bed. That's true. Especially during the winter or in air conditioning, when you first get into bed, it feels very firm. As your body temperature warms up the topper, it softens considerably (and deliciously). These toppers are life changing and offer optimum sleep comfort. They are surprisingly heavy, so especially with the larger sizes, use two people to handle the toppers without possibly damaging them. Their weight and heft can be considerable.
Also there were NO offensive odors to the foam upon opening or usage. You DO want to gently unfold (just a wee bit to help it get started) the topper once you take it out of the packaging and have a good, firm, solid, and FULLY SUPPORTIVE area in which to allow the topper to expand to its full size prior to placing it on your bed. To protect the foam topper, I double my fitted sheets. I always use two layers of fitted sheets on this topper; one to protect the topper and one to sleep on without worrying about sweat, bodily fluids, spills, dog slobber and other assorted life-messes, etc., soaking through to the topper.
I highly recommend this Simmons 3" reversible gel topper and can't express how much of a comfort difference it makes for our beds.