These have a seam that holds it shape better. Even after I wasn?t pregnant they still were to tight to be comfortable. The replacement the right ear piece did not work so audio only came out of the left ear. They came in a clear ziplock style plastic bag in a cardboard holder that looks like it would be normally inside the box your phone came in, if they still sent headphones with phones. A lack of stable options, wearing out too fast, and less quality in the sole. This rise block provides three different height positions, which I have found beneficial for helping to make my bike a little more comfortable. As technology advanced, products get made, and markets get over saturated with a multitude of similar products boasting the same quality and it is sometimes difficult to pick out the good from the bad. The thing itself lasts for ages! I have no idea why Amazon want me to rate Sheerness and Thickness for a memory board! Even on my "bloated" days!