The FCS Al Merrick PC Medium Cobalt Thruster/Quad Fins bring the design input of legendary shaper Al Merrick of Channel Islands Surfboards to a versatile fin set that works as both a thruster and a quad. The template is engineered for down-the-line speed and critical arc surfing, delivering the hold and drive that Merrick's boards are famous for. Template: Al Merrick — balanced outline combining speed, hold, and manoeuvrability across conditions Construction: Performance Core (PC) — fibreglass over a honeycomb core for a firm, lively flex Size: Medium — suited to surfers approximately 65–80kg Compatibility: Thruster or Quad setup — works with FCS II 5-fin box configurations Fin System: FCS II compatible — tool-free installation Colour: Cobalt Set Includes: 4 fins (for quad) or use 2 sides + 1 centre for thruster Sizing Note: FCS Medium fins are recommended for surfers approximately 65–80kg (143–176lb). The Al Merrick template suits a wide range of surfers and conditions — from beach breaks to points — making it a versatile choice for travel or varied home breaks. Care: Rinse with fresh water after each use. Avoid storing in direct sunlight for extended periods. Inspect fin bases and tabs regularly for signs of wear or damage.