Simeon Un-Bo

TAD Edition
Form Follows Function
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Regular price $950.00
Regular price $950.00 Sale price $950.00
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Material: CPM 154
Color: OD Green
Variation: Smoke
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We are proud to introduce our first collaboration with Jamie Simeon of Simeon Custom knives. His Un-Bo caught our attention with its agile and graceful style. The Un-Bo is reductionist in build, but not short on features. The handle is an expertly contoured framelock of OD micarta and titanium. Pared down to its essence, the knife is profiled to be thin and lithe, yet secure in the hand. Hidden under the micarta is a full length inset titanium slab to bolster torsional rigidity. The blade itself is a modified Bowie with Sheffield style clip, his smoke finish offers depth to the contours of the CPM 154 blade. Deployment by either the milled relief cut out in the blade or the flipper tab is robust and positive due to the bearings under the titanium pivot. Finer details include a 3D titanium clip, pivot, stand offs and screws all finished in a subtle matte blast finish. Our logo is at the base of the blade on the presentation side while Simeon’s logo is nested in the lockbar relief. Finally, Jamie milled our triple fullers into the micarta slab. Reduced to perfection, the Un-Bo is an effortless and capable EDC.


  • The CPM 154 Sheffield Bowie style blade running on bearings, can be deployed by the flipper or the milled blade pocket. The non glare smoke finish is applied by hand rubbing, then etching and finishing with Scotchbrite. 

  • The Framelock construction has a Micarta presentation scale with an inlay of titanium running from pivot to backspacer. The titanium lockside is blasted for a muted and tactile finish. 

  • The titanium 3D pocket clip is finished in a deep matte blast and affixed by ti standoffs.

  • Crafted titanium pivot and torx pivot screws are bead blasted to match the frame and clip. The etched Triple Aught Design is  at the base of the blade while Simeons is present in the lockbar relife. 

Behind the Scenes with Jamie Simeon 

 Jamie Simeon grew up in rural Louisiana hunting, fishing and enjoying the outdoors.  He began collecting custom knives in 1993 and have had a passion for them as long as he can remember. His job in the pipeline industry has taken him all over the world and in and out of many great knifemakers shops.  He has learned from some of the very best.  In 2009 he began making his own folders in Tennessee.  Each knife he create is made with exacting standards based on his wealth of experience as a collector and in the field end user.

Due to the nature of custom hard goods, slight variations may occur. Item does not qualify for discount or promotion. Limited to one per household. No phone orders.

By placing an order with Triple Aught Design, you are verifying that you are over 18 years of age and are aware of all local, state and federal laws regarding the possession of, or the carrying of this product. Triple Aught Design shall be held blameless for any infraction of laws made by the purchaser.



Blade: Smoke Finish CPM 154

Handle: OD Green Micarta

Frame Lock, Pocket Clip and Hardware: Titanium


Blade Length: 3.5” ( 8.89cm)

Blade Thickness: 0.156” (396 cm)

Overall Handle Thickness: 0.48” (1.21cm)

Overall Length: 7.5” ( 19.05cm)


3.65 oz (103.47 grams)


Blade Type: Sheffield Bowie Flipper on Bearings

Hollow Grind and Smoke Finish on Blade

Titanium and Micarta Frame Lock Construction
Inset Titanium Slab in Micarta
Raised Thumb-Ramp

Tip-Up, Right Side Carry Titanium 3D Pocket Clip

Custom Blasted  Titanium Pivot and Screws

Logos & Labels

 Etched Triple Aught Design logo at base of blade and Simion logo in lockbar relief cut.

Made in USA