It's been ages since I've seen one. That was based on pictures. There should be a strap in the back just a velcro closure.

There are other styles like the immobilizing one EMTs use. The one i did is for whip lash and pinched nerves rather than serious injuries.

---

Available on Amazon for the Kindle E-Reader Monster of the North and The Shimmering Mage

Today I break my own personal record for the number of days for being alive.
Check out my store here or my free stuff here
I use Poser 13 and win 10