Handmade by DR DHT himself. Carbon steel black painted chain, with a black metal trigger clasp on one end, and a metal black carabiner on the other.
Available in 3 lengths; 13 inches for a super short chain, 18 inches; a good mid length, and 24 inches for a longer, swoopier chain.
These are very durable yet lightweight. 
There will be a very limited amount available. I wear this chain as my daily, and I know you'll love it too!