The Space Invader is one heck of a fly. Signature tyer Rob Anderson nailed it here, basically a bulky bucktail fly enhanced with plenty of flash as well as a saddle hackle feather. Big eyes under an epoxy head make this a durable, long lasting fly. The Tiemco 600 SP undoubtedly provides you the confidence needed when headed into battle with some of the heavy hitters that lurk saltwater environments.