Product Description

Spyderco's first-ever manual button-lock folder — designed by Eric Glesser with a button-lock mechanism, ball bearing pivot, and open-backed carbon fiber/G-10 laminate handle that makes it one of the smoothest manual folders the brand has ever produced.

The 3.27" modified clip point blade is ground from 8Cr13MoV — a high-chromium stainless steel specified for reliable corrosion resistance and consistent sharpening response across the full-flat grind geometry applied here. Full-flat grinding produces a thin, efficient cutting cross-section that outperforms hollow grinds on fibrous material and gives the blade geometry that justifies its modest steel tier. The black oxide coating on the C275CFPBK eliminates glare across the full blade length and adds a layer of surface protection — matched by the black-coated handle hardware throughout for a cohesive all-black execution. The ball bearing pivot washers are the mechanical foundation of the ButtonUp's reputation for smooth, fidget-friendly action: the button-lock mechanism releases the blade into a bearing-assisted deployment that reviewers consistently describe as addictive to open and close. The button itself is recessed and spring-loaded — positive engagement, clean release, no ambiguity in lockup. Carbon fiber/G-10 laminate scales keep the package at 2.1 oz despite the open-backed construction's structural demands; nested stainless steel microliners around the pivot and lock reinforce precisely the points that matter for mechanism integrity without adding material elsewhere. A second set of microliners at the butt end anchors the hourglass clip and straddles a lined lanyard tube — thoughtful engineering that lets the clip and lanyard fob coexist without competing for the same real estate.

• Blade: 3.27" 8Cr13MoV stainless steel, modified clip point, full-flat grind, black oxide finish, plain edge — 0.118" stock; 2.71" edge length; all-black hardware and blade coating throughout
• Handle: Carbon fiber/G-10 laminate scales, open-backed construction, smooth finish — nested stainless steel microliners at pivot and lock for structural reinforcement; second set of microliners at butt anchors clip and straddles lined lanyard tube
• Deployment / Lock: Manual button-lock — Spyderco's first; spring-loaded recessed button for positive one-hand deployment and release; ball bearing pivot washers for smooth, consistent action; fidget-friendly by design
• Carry: 2.1 oz; 7.68" overall; 4.43" closed; reversible hourglass clip for ambidextrous tip-up carry (left or right side); lined lanyard tube for fob or lanyard attachment — Made in China

Ideal For

• Button-lock EDC buyers who want a Spyderco — the ButtonUp fills a gap in Spyderco's lineup that has existed for years; buyers who prefer button-lock deployment over Compression Lock or thumb hole opening and have wanted a Spyderco-quality folder in that format now have their answer
• Carbon fiber and all-black EDC collectors — the C275CFPBK delivers a complete blackout execution in carbon fiber/G-10 laminate at 2.1 oz; buyers who have been building a cohesive all-black carry setup will find the ButtonUp a natural fit alongside other blacked-out folders in the collection

The Spyderco ButtonUp Carbon Fiber All-Black (C275CFPBK) is a genuine first for the brand — manual button-lock, ball bearing pivot, carbon fiber scales, and full blackout execution in a 2.1 oz package that Eric Glesser designed to be as satisfying to operate as it is to carry. Order with the legendary service and fast shipping Knifeworks is known for.