This picture shows the panel bottom Velcro and the top Velcro. The lapel is simply folded over the panel to button it up.
Also take note of the slim profile of the panels junction box compared to my fingers. When stowed beneath a berth cushion you are barely able to discern a bump in the foam. This is a very nice feature for a 125W panel. There are also no sharp edges to scratch a beautifully varnished interior!!