No more fumbling with the NOS approach charts with this Book Knee Strap. This clever device will keep your NOS book firmly attached to your leg with a clear plastic hand over the book while your view goes unobstructed. It is made of two inch polypropylene webbing with hook and loop fasteners.
I am disappointed in this product. I routinely use elastic straps on my thighs to organize plates, cards, charts, etc. I had hoped this strap would be superior to the non-aviation elasticized velcro straps I usually buy, but it has a fatal flaw: NO ELASTIC. It cannot be made to grip the thigh adequately, and just slides and slips around. It would be great if they'd add some elastic.