SKU: 62527894389

Sage 5 Lightweight Rex 121

Sale price$156.94 Regular price$174.38
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Description

Sage 5 Lightweight Rex 121Description For those seeking unparalleled edge retention in an ultra lightweight format, look no further than this elite rendition of the Sage 5 Lightweight. Its full flat ground, satin finished blade is crafted from state of the art CPM REX 121 tool steel. Renowned for its extreme hardness and edge holding properties, this remarkable steel features more than three percent carbon and high volumes of tungsten, molybdenum, vanadium, and cobalt. All

 

Description

For those seeking unparalleled edge retention in an ultra-lightweight format, look no further than this elite rendition of the Sage™ 5 Lightweight. Its full-flat-ground, satin-finished blade is crafted from state of-the-art CPM® REX® 121® tool steel. Renowned for its extreme hardness and edge-holding properties, this remarkable steel features more than three percent carbon and high volumes of tungsten, molybdenum, vanadium, and cobalt. All other features of this knife are faithful to the standard Sage 5 Lightweight platform, including a stout Compression Lock® mechanism, nested, skeletonized stainless steel liners, a reversible deep-pocket wire clip, and a lightweight, injection-molded fiberglass reinforced-nylon (FRN) handle. To further highlight its advanced blade material, the FRN handle of this knife is molded in a distinctive burnt-orange color.

Spyderco will donate approximately 5% of sales of the Sage line to the National Alzheimer's Association Denver, Colorado Chapter. The Alzheimer's Association is the leading voluntary health organization in Alzheimer's care, support, and research. Their mission is to eliminate Alzheimer's disease through the advancement of research, to provide and enhance care and support for all affected, and to reduce the risk of dementia through the promotion of brain health. Contributions to the Alzheimer's Association provide care and support to families in Colorado coping with Alzheimer's disease, as well as fund national programs and research to ultimately find a cure. Visit www.alz.org/co to learn more about how your support makes a difference.

Annotations:

CPM Rex 121 is no longer able to be produced anymore since the "C" in CPM (Crucible Industries) has ceased operations and no other current  foundry has the required capabilities. Therefore, while this is technically part of the standard Spyderco catalog, it's not likely that there will be many more runs of it produced, if any. I expect these to become highly coveted collectible items due to both the eventual rarity and also uniquely extreme performance characteristics. 

knifesteelnerds.com has CPM Rex 121 rated as a 12/10 in edge retention, 1/10 in toughness (don't pry with knives!), and 3.5/10 in corrosion resistance. For edge-retention reference, Maxamet is 11/10 and 15V is 10/10. The gold standard of EDC steel for the last 20 years, S30V, has a 6/10. The kitchen knife "German high carbon" steel you're probably familiar with (1.4116) has a 2.5/10. Rex 121 is truly an outlier! Just be sure to be careful not to chip or snap it.

And yes, the scale color was directly inspired by the UT school colors! Hook 'em Horns! 

Technical Specifications

  • Overall Length: 7.13in 181mm
  • Closed Length: 4.17in 106mm
  • Blade Thickness: .118in 3mm
  • Tip Carry Position: Tip-Up
  • Sheath: N/A
  • Blade Length: 3in 76mm
  • Edge Length: 2.64in 67mm
  • Handle Material: FRN
  • Lock Type: Compression
  • Origin: Taiwan
  • Steel: CPM® Rex® 121®
  • Knife Weight: 2.9oz 82g
  • Clip Position: Ambi
  • Grind: Full-Flat
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SKU: 62527894389

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Amanda
Pawtucket, US
★★★★★ 5
Vitamins.
Size: 100 Count (Pack of 1)
Taste great! Smells good. Easy to use. Helps with energy! Good quality. Easy on the stomach. Just thick enough.
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Reviewed in the United States on January 15, 2026
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Anonymous
Louisville, US
★★★★★ 5
Big but smaller than most
Size: 100 Count (Pack of 1)
Good overall vitamin that isn't too big to swallow. No stomach issues, no increased energy, just trying to get my vitamin D up to a good level and adding other vitamins I need is helpful to reduce the number of pills taken each day.
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Reviewed in the United States on January 30, 2026
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Ruth'E
Draper, US
★★★★★ 5
Second Bottle
Size: 100 Count (Pack of 1), Size: 100 Count (Pack of 1)
On my 2nd bottle and I have to state wow! For my older ladies like me,These have the health fuel you need. I have been using another brand for almost a decade they were already pricey women's once a day for $26 + tax but they increased the price to $30 some sites are $30+ just alot for me because I take alot of different vits,protein powders,and superfoods veg powders. After looking at reviews I decided to purchase and the price is amazing. They actually offer the same vit mixture of the more pricy brand I was buying. It does have some fillers I was on the fence about. I have to tell you these give me the same energy and nutrients I need. I can definitely tell the difference. I was out of town,left these behind and the 3rd day without I could tell the difference! Yes that fast. Doesn't bother my blood sugar or MY hypertension. These are one of those finds ladies a diamond in the rough. I'm asking the seller PLEASE keep these affordable. Merchants love to up prices without a moment's notice and the subscribe option is great. I don't have to manually go reorder I have so much going on I tend to forget. Men can also take these my twin brother asked if I had any vits while he visited, my family is big on health. Hes a trainer so is my mom & nutritionist. She actually taught me what to look for in vits and they should be taken at night. Makes sense buy the time you wake they are in your system and you are ready for your day! Some people wonder why they lag through work, have problems sleeping. You take in the AM hours after absorbed you have made it through most of your day already. Taking at night literally right before sleep is a game changer! I chose these after reading all the ingredients along with the price point of course. My twin stated how he liked them alot & asked me to purchase them for him. He can care less that they state women vits. He cares about the performance and I have to agree. Don't let the few fillers deter your choice, won't do any harm. Alot of more expensive vits that claim not to have them,all natural etc, the vit quality is very low. You barely get what you need. Its like you are paying for the brand not the quality performance you have to take a few to get what you get from 1 of these tabs.
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Reviewed in the United States on June 17, 2023
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MommySe-se
Omaha, US
★★★★★ 4
Not Too Bad
Size: 100 Count (Pack of 1)
A pill is a pill. Drink plenty of water. Not the easiest to swallow but does help with your daily health. The pills are a little big, a slight smell and mild taste.
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Reviewed in the United States on July 12, 2025
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Lynne Steele
Belleville, US
★★★★★ 5
Nice vitamin vitamins
Size: 100 Count (Pack of 1)
We use these vitamins every single day they work wonderful
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Reviewed in the United States on February 4, 2026

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