Spyderco Caly 3 Review

We independently evaluate all recommended products and services. Any products or services put forward appear in no particular order. If you click on links we provide, we may receive compensation.

Let me start this review with an important detail: the Spyderco Caly 3 CF-ZDP we’re talking about is out of production. Spyderco put this carbon-fiber, laminated ZDP-189/420J2 model (C113CFPE) on its 2016 discontinued list. The hands-on observations below come from my original used sample. The Amazon link lets you browse available Caly models and variations.

But why bother reviewing a knife that’s out of production?  Well, the Spyderco Caly 3 (short for Calypso) was a mainstay in Spyderco’s primary lineup, and is a study in ergonomic consideration over aesthetics.  It’s old and out of date in some ways, but in others it’s still state of the art for use.  Not to say that Spyderco makes a lot of “all show, no go” knives (far from it) but the Caly 3 CF-ZDP is a case study in function over form that is still relevant to this day.

The Blade

Okay, here’s the first interesting part of the Caly. What’s the blade steel? Well, which part of the blade? The Caly 3 CF-ZDP uses a laminated blade: an inner cutting core of ZDP-189 between two outer layers of 420J2. The harder core supplies the cutting edge while the softer outer layers support it. That gives the blade its distinctive laminate line, but it does not make a thin slicing blade immune to damage.

The laminate is part of this knife’s appeal: you can see the boundary between the core and the outer layers rather than just reading a steel name on the blade. It is worth distinguishing that three-layer construction from a blade that uses one steel throughout.

ZDP-189 was developed by Hitachi in Japan and contains about 3% carbon and 20% chromium. Those numbers alone do not tell you how a knife will perform: heat treatment and the steel’s carbide structure matter too. In particular, a high total chromium percentage does not guarantee strong corrosion resistance. Metallurgist Larrin Thomas’s ZDP-189 testing found rusting despite that chromium content. Keep the exposed cutting edge clean and dry; the outer cladding does not protect the edge itself.

On this knife, the edge retention was excellent, and sharpening it was a pain. Those are the trade-offs I noticed in use; they are not a hardness measurement of this particular blade. The softer 420J2 sides also pick up scratches, as discussed below.

Dimensions on the Caly 3 put it in the sweet spot of usability for me, with a 3” long blade and a forward finger choil. Spyderco’s 2015 catalog lists a 2.64” cutting edge and 0.118” (3 mm) blade thickness; these are manufacturer specifications, not measurements of my sample. The blade itself is relatively thin across the spine, and it’s full flat ground from the edge bevel to the spine so this blade is focused on slicing performance above toughness.  The blade shape is a modified drop point, made especially tall to fit the trademark Spyderco thumb hole for opening.

There is no sharpening choil, so the Caly has a mild ‘beard’ where the sharpened edge meets the plunge line, which is a unique curved plunge starting from behind the thumb hole at the peak of the thumb ramp.   The surface has a satin finish, and as the blade ages the two steels get slightly different patinas so it becomes easier to see the laminate line.  It’s very interesting.

Deployment & Lockup

There’s not a ton to talk about here.  Deployment is hands down the Caly 3’s weak point, at least when viewed through the lens of more modern knives.  I don’t have anything against the thumb hole – I still believe in terms of the various opening methods (thumb studs, discs, nail nicks, flippers etc) it’s the easiest and most versatile.  But the action of this knife is stiff and slow, and this knife was more than well broken in by the time I got my hands on it.  One reason is that the knife lacks any washers – the blade and the stainless liners are high polished from the factory to reduce friction, but they are still in direct contact with each other, which gradually leaves “tracks” around the base of the blade where it rubs against the liners.

You can smooth the action out a bit with a few drops of lube, but it’s still a slow and deliberate opening. This isn’t a knife to please habitual fidgeters, being nearly impossible to “flick” open even for a veteran Spyderco nerd like myself. Closing can be done one handed but it’s tricky, with the thumb pressing the lock bar and the forefinger moving the blade closed, then repositioning the hand with the rest of your fingers out of the way to close it all the way.

Of course it can be argued that this is largely a matter of expectation – in the last ten years or so, knives have definitely shifted focus (at least some of them) to becoming adult fidget toys.  I say that as a fan of adult fidget toys, and Spyderco makes some of the very best AFT’s out there.  This just isn’t – and wasn’t designed as – one of them.

Lockup?  Well, there’s no issues at all with lockup.  Even without knowing the full history of my knife, which arrived to me well used with at least two previous owners, the lockup on this Caly 3 is perfect.  The lockback is one of the most old-fashioned lock types, but I still love it for its simple effectiveness.  This particular one is more of a mid-lock, and it features a Boye dent in the lock bar.  It snaps into place with a reassuring click, and there’s zero blade play in any direction when it’s open.  Spyderco uses a relatively strong spring to secure the lock, and it ensures reliable contact with the blade tang.  As with any lockback, it’s important to periodically clean the inside of the knife out (with compressed air, preferably) to prevent the build-up of “crud” in the notch in the tang of the blade where the lock bar engages.

Features, Fit & Finish

Fit and finish on this knife is really amazing.  It was made in Japan, and it has several hallmarks of master craftsmanship.  Most impressive to me is how the liners match up with the backspacer as well as the lock bar – you can pass your finger nail across the backspacer and both liners and cannot actually feel where the three pieces separate.  The lock bar itself is nearly as flush as the backspacer, which is really amazing considering it moves.  The stainless liners are also perfectly flush with the carbon fiber scales, which deserve to be stared at, at least for a little while.

They’re full carbon – not a G10 laminate – and they’re smooth to the touch, with a deep luster that’s unusual for the synthetic material to possess.  The tang of the blade also lines up perfectly with the lock bar when open, and the curvature of the thumb ramp perfectly matches the lower portion of the scale that forms the finger choil when closed.  The fit and finish on this knife is really stellar, even being several years old and having had several owners.

One thing that belies the age of this design is its construction: the Caly3 is pinned together with the exception of the pivot and the clip screw, so it cannot be disassembled (unless you’ve got a drill press and you like creating problems for yourself.)  I really don’t like taking apart lockbacks, but I’d at least like the opportunity if need arose.  Unusually, it uses an Allen key for the male side of the Chicago screw set that holds the pivot, but the clip screws are Torx.  That clip screw holds down one of my absolute favorite Spyderco inventions: the deep carry wire pocket clip.

This is the peak of pocket clips to me, carrying the knife deep in the pocket but still allowing you to access it easily, held in place with a single screw that locates the two sides of the clip in some slots in the scale.  It’s simple and effective, and is configurable for ambidextrous tip-up carry.  In fact, this whole knife is innately ambidextrous, since the lock and the opening mechanism are both symmetrical and the clip can be switched around in 30 seconds.  The lack of a four way clip (tip down carry) doesn’t bother me as I don’t carry tip-down.  There is no lanyard hole.

Field Test

Boy, I really love using the Caly 3.  As discussed previously, it’s not a fidget toy – but it’s REALLY good at cutting things and then disappearing back into your pocket.  Spydercos have always been at their best when they’re focused on function, and this is probably peak cutting function, other than maybe the Chaparral.

First of all, let’s talk about carry.  It’s impressively light at 3.0 ounces, especially considering the stainless liners, backspacer and lockbar.  This is thanks to skeletonized liners which have a series of various sized holes cut in them to reduce weight.  The handle is relatively narrow as well due to the flat scales and lack of washers, and that deep carry wire clip has strong tension but no abrasive surface to rest on, so the knife slides in and out of the pocket with ease, but doesn’t “migrate” when you don’t want it to.  Just absolute perfection when it comes to carry.

But oh!  In use, the Caly 3 is just the best.  Ergonomics are spot on here – Spyderco says “a great folding knife should function and feel like a natural extension of the hand” which sounds like goofy hyperbole until you get your hands around this thing.  The combination of the long forward finger choil (which seems like 40% blade and 60% scale) and the steep, jimped thumb ramp lock your hand in place on this blade in a controlled forward grip.  You can also do an effective pinch grip with the pivot screws and your forefinger on the thumb ramp, or a rearward grip for more leverage with your forefinger behind the trailing edge of the finger choil and your thumb on the ramp as well.  The blade shape is just perfect for daily use, offering an acute tip for puncturing hard packaging, enough belly to roll cut food, and a full length flat grind that lets the Caly3 cut through cardboard like it was a zipper.  It makes all other blade shapes seem superfluous.

Does anything let it down in daily use?  Sure, I wish the action was smoother and that it was easier to close.  And not being able to break the knife down to clean it is a bummer, as are the circular scratches on the blade tang (from the lack of washers) and the random scratches on the flat sides of the outer layer (due to its softness).  But in terms of how well it carries and cuts, the Caly 3 is a classic for a reason- it’s a very satisfying tool to actually use.

Alternatives

If you want a knife to carry rather than a particular discontinued Caly, these are the comparisons that make sense. The specifications below were checked against manufacturer sources on September 10, 2026.

Spyderco Native 5 S110V G-10

The Native 5 S110V G-10 keeps the comparison close: a compact backlock with a finger choil and a full-flat-ground blade. The current C41GPDBL5 has a 2.98” blade, weighs 3.0 ounces and uses dark-blue G-10. It also offers a four-position clip. Those figures are for the G-10 model; the Lightweight uses FRN. Spyderco lists the current G-10 construction as linerless; the linked review and photo document the earlier reviewed example.

See Spyderco’s Native 5 S110V G-10 specifications. This is the option to consider if the Caly’s useful compact format matters more to you than its carbon fiber and laminated blade.

Spyderco Chaparral Lightweight

The Chaparral Lightweight C152PGY is the more direct comparison for thin-bladed slicing and discreet carry. Its PlainEdge CTS-XHP blade is 2.8” long and 0.079” (2 mm) thick, and the knife weighs 2.1 ounces according to Spyderco. It has gray FRN scales, a backlock and a reversible deep-pocket wire clip. That’s the FRN model pictured below.

See Spyderco’s Chaparral Lightweight specifications for the PlainEdge version. It gives up the Caly’s carbon-fiber finish and laminated ZDP-189 construction, but is worth considering if low weight and a thin blade are your priorities.

Fällkniven TK4: check the steel generation

Earlier TK4s used laminated 3G steel. Fällkniven’s current TK4c specifications instead list Elmax, a Grilon handle, a 70 mm blade and a weight of 55 g. It is a backlock with nail nicks rather than Spyderco’s opening hole. It remains an option for a compact, understated folder, but this Elmax version won’t scratch the same laminated-steel itch as the Caly.

If the laminated ZDP-189 blade is the attraction

Spyderco’s Caly 3.5 C144CFPE specifications list carbon fiber and ZDP-189/420J2 construction. Its specifications give a 3.4” blade and 3.1-ounce weight. The Amazon Caly search returned an available Caly 3.5 listed as “Caly Prestige” when checked. It shares the laminated steel and carbon-fiber construction, but its longer blade makes it a different option from the Caly 3 reviewed here. For a secondhand Caly 3, assess the individual knife’s condition, lockup and sharpening history rather than treating an old retail price as its current value.

Wrap-up

I really love the Caly 3 ZDP. The cutting performance, ergonomics, carbon-fiber scales and deep-carry clip are what make this particular knife so satisfying. Its slow action and pinned construction are real trade-offs, especially when buying a used example. For me, that combination of cutting feel and pocket-friendly design is what makes it a classic.

A more interesting question would be – how would I update the Caly 3 to be a more modern product?  Well, it would benefit from being able to be disassembled and maintained – the flush fitting body screws like the PM2 uses would be nice.  A set of phosphor bronze washers between the liners and the blade would make the knife only microscopically thicker but would make it much smoother to open and close.  Maybe they could switch it over to the compression lock too while they’re fiddling.  Those are wishes for a hypothetical redesign, not features of this knife. As it stands, the Caly 3 CF-ZDP is a rewarding used knife for someone who values its cutting feel and accepts its maintenance limitations.