Berkley ProSpec® Large – ClearBerkley ProSpec Large Clear The Berkley ProSpec Large Clear is a high performance monofilament line designed for anglers who need virtually invisible line with dependable strength. The clear line ensures minimal visibility underwater, while the durable, abrasion resistant construction provides reliable performance for leader setups, rigging, and reel fills in both freshwater and saltwater environments. Top Features & Benefits Clear line for stealthy