Spyderco C91SYL Pacific Salt Folding Knife 3-13/16" H1 Satin Serrated Blade, Yellow FRN Handles


Retail Price: $129.95 | You Save: $45.48 (35%)
Part #: SP91SYL | Spyderco Knives
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SP91SYL: C91SYL Pacific Salt
A big myth in the knife world is that out there somewhere is a knife that seriously cuts but cannot rust. Knives claiming these super powers are usually made with steels that are unable to hold a cutting edge for any measurable amount of time. Finally a steel foundry in Japan called Myodo Foundry makes this myth a reality with the introduction of a new steel called H1. H1 steel is a PH steel, meaning it is a precipitation-hardened steel. "Huh" you ask? Utilizing .1% nitrogen instead of carbon to harden the steel, it reaches a Rockwell hardness of 57-58rc. Spyderco uses H1 on its new C91 Pacific Salt model.

It's similar in shape and size to Spyderco's best-selling Endura model but with a slightly more rounded tip. All internal steel parts are treated as well making them impervious to rust and pitting and of course, salt. Those challenged by cleaning and maintaining their knives will find the Pacific Salt stays rust-free even if put away wet. The blade's hole is enlarged to 14mm for easier opening/closing with gloved, wet or cold hands. Textured in a checkerboard pattern, the yellow FRN handle has a grippy texture and is fitted with a reversible titanium pocket clip which positions for right-handers and lefties. The addition of a lanyard hole offers a backup method of attachment (thong or lanyard cord) for use around water where once dropped, a knife is often lost or elusively hard to retrieve.
  • Blade Length: 3-13/16" (97 mm)
  • Cutting Edge: 3-7/16" (88 mm)
  • Blade Thickness: 1/8" (3 mm)
  • Overall Length: 8-11/16" (221 mm)
  • Closed Length: 4-7/8" (124 mm)
  • Hole Diameter: 9/16" (14 mm)
  • Blade Steel: H-1
  • Weight: 3 oz. (85 g)
  • Handle Material: Yellow FRN
  • Made in Seki-City, Japan

UPC Code: 716104007400

The lockback system has been used for many decades. It can usually be found on the knife spine and it provides a strong lockup that will wear well.
Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
Made in Japan
Made in Japan
The exotic steel Capital of the World, Japan produces and innovates some of the best products, from pocket to kitchen knives and everything in between.
Zytel Handles
Zytel Handles
A nylon polymer that is lightweight and extremely durable, Zytel can be shaped and textured to provide excellent grip.
4.545 (11 reviews)
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5 out of 5
Tom Horn
Oct 04, 2017
Pros: Lock Type, Handle Material, Handle Feel, Blade Sharpness, Blade Material, Ease of Opening, Weight, Lock Ease of Use, Overall Quality
Cons: None
Hey! Guess What?...
…this H1 steel won’t rust in salt water. Since many folks let us know that fact in their reviews, I thought I should keep the chain going. If ocean rise ever reaches Illinois, I got just the knife for it. >>>>>>>>>>>> Seriously though, this is a great knife for land-locked folks, too. I used to do a lot of snorkeling in fresh water lakes when I was young, and always took a dive knife in case I got tangled in fishing line. Same goes for canoeist, kayakers, fishermen who go wading. I recommend a good retention system. I have been using a T-Reign Heavy Duty Retractable Gear Tether, of late, and I am impressed (purchased at It has a Kevlar chord and I have put it through a lot of abuse, and it has held up well. It could attach to your life vest, or, fishing vest. >>>>>>>>> Wicked-sharp blade, but I would recommend the Atlantic Salt (H1 steel), or, the Byrd Cara Cara Rescue 2 (8Cr13MoV, fresh water only, dry/oil p use) if you’re looking for strictly a rescue type knife, as these have a less pronounced point on the blade (sheepsfoot), when slicing a person clothing free, cutting a seat belt, or freeing your body parts from fishing line, etc. Both knives are available at But I purchased this knife because I read somewhere (KnifeCenter review?, Spyderco Forums?) that H1 reaches additional edge hardness when serrations are ground into the blade (62 HRC, or, some-such) from the heat generated in the grinding process. So, I thought I’d have to check it out. I like the deeper/longer hollow grind on my Byrd Cara Cara Rescue 2, better. Looks like the Spydie-hole got in the way of a longer grind on the Pacific Salt. Pacific’s salts handle is very comfortable, and big enough for large hands with glove on. Love Spyderco’s aggressive serrations, and their lockbacks. FRN checker board pattern scales are extremely grippy (funny, they call the same pattern, “Volcano grip,” in description of Atlantic Salt). Cara Cara’s bi-directional grips are grippier, but not as comfortable. >>>>>>>>>>>>>>>>> And, this Pacific Salt isn’t tactical, it’s… yellow. It is obviously a, ‘Safety Knife.’ I know I will feel very safe carrying it. I can see a Spyderco Autonomy and Aqua Salt in my future.
4 out of 5
Sep 29, 2017
Pros: Overall Quality, Ease of Opening, Blade Sharpness, Blade Material, Weight, Pocket Clip, Lock Type
Cons: Handle Material, Handle Feel, None
Great saltwaterproof knife
The pacific salt is excellent in almost all aspects. The blade is the sharpest, I have ever had. It is extremely light for a blade of that size and I feel comfortable, knowing that it wont rust, when in contact with salt water. There is only one con: the handle. It feels not that ergonomic and I would have preffered the vulcan stlye pattern, like you get on the dragonfly salt or the aqua salt, instead of the chess pattern. Delivery to Switzerland was rather smooth, the only con there was, that it stayed about a week or more in the postal center in the US.
5 out of 5
San Diego
Jun 07, 2017
Pros: Handle Feel, Blade Sharpness, Weight, Overall Quality
Cons: None
6 Months of Saltwater Use and No Rust
I waited half of the year to write this review because I wanted to see if the knife was really rust proof. After six months on a d-ring in the front pocket of a life vest that has seen around 60 days of wet sailing in a dinghy, there's not a spot on the knife. It's been taken out of the vest around three times for a quick rinse, but other than that it has been left to fend for itself. Product totally as advertised with respect to corrosion resistance. Great knife.
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