Built for life on the water, the Opinel No. 09 Ocean Folding Knife Blue with Marlin Spike Part Serrated Blade is engineered to meet the exacting demands of sailors, boaters, and marine enthusiasts. Whether you’re trimming lines, handling sails, or navigating challenging conditions, this knife combines precision, strength, and safety in a design built specifically for the sea. Every feature has been optimized to provide control, efficiency, and reliability when it matters most, making it a trusted companion for serious sports enthusiasts who depend on their gear in demanding environments.
At the heart of the No. 09 Ocean is a 3.5-inch partially serrated blade crafted from Sandvik 12C27 stainless steel. The steel offers excellent edge retention, corrosion resistance, and ease of maintenance—critical qualities in marine environments where saltwater and moisture are constant challenges. The serrated portion of the blade excels at cutting rope and other fibrous materials quickly and cleanly, while the plain edge ensures precise slicing for detailed tasks. A robust shackle key adds functionality for common onboard needs, giving you a multi-purpose tool without adding bulk.
Safety and durability are central to the design. The blade features a Virobloc® safety ring with double safety, locking the blade securely in both open and closed positions to prevent accidental slips or closures during use. A corrosion-resistant PVD coating adds an extra layer of protection, ensuring that this knife stays dependable through repeated exposure to wet and salty conditions.
The handle is molded from blue reinforced polymer with fiberglass, delivering a strong, lightweight, and weather-resistant grip. The integrated marlinspike is ideal for untying knots, splicing rope, or handling lines, while the built-in 110 dB whistle provides a crucial signaling option in emergencies. A convenient lanyard hole keeps the knife accessible and secure, whether clipped to a belt, harness, or deck line. Despite its feature-rich design, the knife weighs just 2.8 ounces and measures 8.25 inches overall, making it compact enough for easy carry without sacrificing functionality.
Made in France with Opinel’s renowned attention to quality, the No. 09 Ocean Folding Knife is a purpose-built maritime tool designed to perform wherever your adventures take you on the water. Its thoughtful combination of cutting performance, safety features, and marine-ready innovations ensures it delivers dependable utility in every onboard situation.
Signal, slice, and splice with your ocean-side essential, available at SMKW.