Here are some good choices. I often carry a fixed blade in my pocket.
The above mentioned Cold Steel Super Edge has a full tang and a good sheath. The Esee Izula is a bit larger and pretty nice. The Cold Steel Mini Pendleton Hunter is a full tang stainless knife with decent steel. The belt attachments for the sheath can be taken off purposely so that you can pocket or neck carry the knife.
The above mentioned Cold Steel Super Edge has a full tang and a good sheath. The Esee Izula is a bit larger and pretty nice. The Cold Steel Mini Pendleton Hunter is a full tang stainless knife with decent steel. The belt attachments for the sheath can be taken off purposely so that you can pocket or neck carry the knife.