HemiSERE is a modernized version of the OSS Lapel Knife made of a Titanium/Ceramic composite.
Because the knife only weighs 4 grams, it can be attached directly to the collar with a “glue dot;” unlike other “lapel knives,” the HemiSERE really can be worn on the lapel 😉 At 1mm thick, it can also be stuck to a credit card, or slipped into a phone case. And of course it can also be integrated into a mini SERE kit.
gearward.com/collections/frontpage/products/hemisere