What do you carry to save a life? The Safariland Group introduces the SONS First Responder Trauma Kit by Phokus Research Group. This innovative trauma kit eliminates bulky medical pouches that take up space on your kit. Sized to fit behind ballistic plates, the SONS Trauma Kits are packed for quick deployment and designed around injury patterns in order of priority for trauma treatment with the necessary supplies. Kits are approximately ½"- ¾" thick at their thickest point.