
Availability: In Stock
Current Stock: Out of stock
The Spyderco Endura 4 Lightweight K390 folding knife is built for hunters, anglers, campers, and anyone who needs reliable cutting performance in a package light enough to carry every day without thinking about it. This is the latest iteration of Spyderco's legendary Endura design—a mid-size folder that's proven itself across decades of field use. The K390 blade steel is the standout here: it's a high-carbon tool steel that takes an edge sharper than stainless offerings and holds it longer, which matters when you're processing game, field dressing, or working through camp tasks for hours on end. The 3.80" blade comes stonewashed, a practical finish that hides wear and works just as hard as it looks.
Lightweight construction doesn't mean compromise. The Endura 4 keeps the classic Spyderco design language—the distinctive round hole opener, the comfortable index-finger choil, and the profile that feels natural in your hand whether you're in heavy brush or sitting around the fire. The pocket clip is integrated, so carry is secure and accessible without bulk. This knife sits in the sweet spot for serious users: substantial enough to handle real work, small enough to slip into a hunting pack or lash to your belt without adding weight or snag hazard.
K390 does require maintenance—it will rust if neglected—but that's the trade-off for superior edge retention and ease of sharpening. If you're the type who keeps your gear sharp and dry, the Endura 4 Lightweight rewards that discipline with performance that outclasses stainless-steel folders in the same category. It's a working tool, not a safe queen, and it's ready to go wherever the hunt or adventure takes you.
| Blade Material | K390 Steel |
| Blade Length | 3.80" |
| Blade Edge | Plain |
| Blade Finish | Stonewashed |
| Type | Folding Knife |
| Pocket Clip | Yes |
| Model Number | C10FPK390 |
The Endura 4 Lightweight carries a 3.80" blade—long enough for field dressing, processing, and camp prep work, but compact enough to carry comfortably on your hip or in your pack all day without fatigue or snag risk. It's purpose-built for the hunter and outdoorsperson.
Yes. The Endura 4 Lightweight includes an integral pocket clip for secure carry and quick access in the field or around camp.
K390 is a high-carbon tool steel that takes a significantly sharper edge and holds it much longer than stainless options. The trade-off is that it requires regular maintenance—you'll need to keep it dry and clean to prevent rust. If you're willing to care for your edge, K390 delivers performance that outclasses stainless-steel folders in the same size and weight class.
Yes. The Lightweight designation means this version is optimized for weight savings, making it ideal for backcountry trips, overlanding setups, or extended carry where every ounce counts.

SKU: 115665217 • Weight: 0.3oz





Availability: In Stock
Current Stock: Out of stock
The Spyderco Endura 4 Lightweight K390 folding knife is built for hunters, anglers, campers, and anyone who needs reliable cutting performance in a package light enough to carry every day without thinking about it. This is the latest iteration of Spyderco's legendary Endura design—a mid-size folder that's proven itself across decades of field use. The K390 blade steel is the standout here: it's a high-carbon tool steel that takes an edge sharper than stainless offerings and holds it longer, which matters when you're processing game, field dressing, or working through camp tasks for hours on end. The 3.80" blade comes stonewashed, a practical finish that hides wear and works just as hard as it looks.
Lightweight construction doesn't mean compromise. The Endura 4 keeps the classic Spyderco design language—the distinctive round hole opener, the comfortable index-finger choil, and the profile that feels natural in your hand whether you're in heavy brush or sitting around the fire. The pocket clip is integrated, so carry is secure and accessible without bulk. This knife sits in the sweet spot for serious users: substantial enough to handle real work, small enough to slip into a hunting pack or lash to your belt without adding weight or snag hazard.
K390 does require maintenance—it will rust if neglected—but that's the trade-off for superior edge retention and ease of sharpening. If you're the type who keeps your gear sharp and dry, the Endura 4 Lightweight rewards that discipline with performance that outclasses stainless-steel folders in the same category. It's a working tool, not a safe queen, and it's ready to go wherever the hunt or adventure takes you.
| Blade Material | K390 Steel |
| Blade Length | 3.80" |
| Blade Edge | Plain |
| Blade Finish | Stonewashed |
| Type | Folding Knife |
| Pocket Clip | Yes |
| Model Number | C10FPK390 |
The Endura 4 Lightweight carries a 3.80" blade—long enough for field dressing, processing, and camp prep work, but compact enough to carry comfortably on your hip or in your pack all day without fatigue or snag risk. It's purpose-built for the hunter and outdoorsperson.
Yes. The Endura 4 Lightweight includes an integral pocket clip for secure carry and quick access in the field or around camp.
K390 is a high-carbon tool steel that takes a significantly sharper edge and holds it much longer than stainless options. The trade-off is that it requires regular maintenance—you'll need to keep it dry and clean to prevent rust. If you're willing to care for your edge, K390 delivers performance that outclasses stainless-steel folders in the same size and weight class.
Yes. The Lightweight designation means this version is optimized for weight savings, making it ideal for backcountry trips, overlanding setups, or extended carry where every ounce counts.
SKU: 115665217 • Weight: 0.3oz
