See, we like to be super tricky, so it's a hybrid kind of design. We tested various ideas, ranging from all supersoft to a variety of inserts to a range of silicones. Exhausting, I tell you!
The final version is mostly supersoft, but with a twist - there is a harder base, like in the O2 version. But the inner core only extends about an inch in. So it's easy to bend down when worn in clothes, but when you free the thing, it stands up. It's an interesting design, and one that we worked really hard to perfect.
It should also be noted that this isn't just a great packer; it's also great for anyone who was a fan of the supersoft as well. A good all-around toy, really.