Meet a compact classic built for everyday practicality: the Case 031 S Trapper Slimline (00031 / 031S). Designed with Case’s long-standing tradition of dependable pocket knives, this slimline trapper delivers a clean, versatile 3.25" clip point blade with a plain edge, crafted from chrome vanadium steel and finished in a rugged tumble polish. Finished off with a bright, easy-to-spot yellow synthetic handle, this folding knife is a smart choice for anyone who wants a lightweight, pocket-friendly cutter for daily tasks, outdoor use, and general utility.
If you’re searching for a Case Trapper Slimline, Case 031S, yellow Case pocket knife, or a compact 3.25-inch folding knife with a classic clip point profile, this model blends traditional styling with modern, no-nonsense usability.
3.25" Clip Point Blade for Everyday Versatility
The clip point is one of the most popular blade shapes for daily carry because it offers a strong mix of control, slicing performance, and a precise tip. With a 3.25-inch blade length, the Case 031 S Trapper Slimline is sized to be convenient in the pocket while still handling most everyday cutting needs. It’s well-suited for:
Opening packages and cutting cardboard
Light utility work around the home or shop
Cutting twine, cord, and general materials
Outdoor tasks where a compact knife is ideal
Everyday carry when you want a simple, dependable blade
The plain edge keeps the cutting profile clean and efficient, especially for push cuts and smooth slicing through common materials.
Chrome Vanadium Steel: Traditional Performance with Easy Sharpening
This knife features a blade made from chrome vanadium steel, a time-tested steel choice known for being straightforward to sharpen and capable of taking a keen edge. Many users appreciate chrome vanadium for:
Easy edge maintenance with common sharpening tools
Strong cutting performance when properly cared for
A classic steel feel that aligns with traditional pocket knife design
As with many non-stainless steels, routine care—like wiping the blade clean and dry after use—helps keep it performing and looking its best over time.
Tumble Polish Finish for a Rugged, Work-Ready Look
The tumble polish finish gives the blade a practical appearance that helps reduce the visibility of minor handling marks. It’s a great match for a knife that’s intended to be used rather than kept pristine—ideal for daily carry, toolboxes, and outdoor kits.
Slimline Trapper Design: Pocket-Friendly and Comfortable
A “slimline” trapper pattern is designed to keep the knife lighter and less bulky than traditional multi-blade trappers, making it especially comfortable for pocket carry. This design is a great fit for anyone who wants:
A classic profile that carries easily
A straightforward single-blade folding knife
Comfortable handling for quick daily tasks
A clean, traditional look without extra bulk
Yellow Synthetic Handle for High Visibility and Easy Handling
The yellow synthetic handle adds practical benefits beyond style. Bright handle colors are popular for users who want a knife that’s easy to spot in a bag, on a bench, or in outdoor environments. Synthetic handle materials are also commonly chosen because they’re:
Low maintenance and easy to clean
Resistant to moisture compared with many natural materials
Durable for everyday use and carry
This combination of visibility and durability makes the Case 031S a smart working knife for fishing kits, camping gear, glove compartments, and everyday pockets.
A Great Fit for EDC, Outdoors, and Utility Kits
Whether you carry a knife every day or want a dependable folding knife for specific tasks, the Case 031 S Trapper Slimline fits a wide range of users:
Everyday carry (EDC): compact size, classic blade shape
Outdoor use: easy to maintain, bright handle for visibility
Work and shop tasks: practical finish and reliable cutting profile
Gift-worthy classic: recognizable Case styling with modern handle material
Product Details
Brand: Case
Model: 031 S Trapper Slimline
Blade Length: 3.25"
Blade Shape: Clip Point
Edge: Plain
Blade Steel: Chrome Vanadium
Blade Finish: Tumble Polish
Handle: Yellow Synthetic
Identifiers / Part Numbers: 00031 / 031S
UPC: 021205000312
The Case 031 S Trapper Slimline is a simple, capable folding knife that blends classic Case heritage with practical materials and a compact, carry-friendly profile—ready for everyday tasks without overcomplication.
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