This is a Josh Hall design fin from Captain Fin. CAPTAIN FIN JOSH HALL TWIN KEEL (SINGLE TAB) 5.58” Purchased new in 2022 and used for about 3 rounds. It has few scratches and is in beautiful condition. The sand beige color is cool. ■SPEC Construction: Honeycomb RTM ■Fins Base: 5.54 [140.7mm] Depth: 5.58 [141.7mm] Foil: 50/50 Thank you for viewing.