First of all, the delivery time beat the expected delivery time by days and allowed me to use the product on a scheduled trip.
I have purchased multiple packs (chest, lumbar, sling) and "like them all but not perfect". This one is PERFECT. Plenty of room, sits nicely in lumbar area and coupled with the purchased belt, it slides around to the front for easy use and then back out of the way. Have the larger lumbar Thunderhead and like it but too big for most days. This one checks all the marks...