How loud is the integrated whistle?

The whistle produces 110 decibels, which is loud enough to be heard over significant distance outdoors. It's designed to work in all four seasons without freezing or clogging, making it reliable for emergency signaling in any weather condition.

What is the serrated section used for?

The serrated area of the blade is designed to cut through rope, webbing, branches, and other fibrous materials that are difficult to slice with a smooth edge. It provides sawing capability without requiring a separate tool.

Can this knife handle extreme temperatures?

Yes, the polymer handle is rated to withstand temperatures from -40°F to 176°F without cracking, softening, or losing structural integrity. This makes it suitable for winter camping, desert hiking, and other environments with temperature extremes.

What is the shackle key for?

The built-in shackle key allows you to open, close, or tighten shackles and similar hardware commonly found on outdoor gear, boats, and climbing equipment. It eliminates the need to carry a separate tool for this purpose.

Is this item returnable?

No, this is a final sale item with no returns or exchanges accepted. However, Opinel's limited lifetime warranty still applies to cover manufacturing defects and quality issues.

Does the knife fold for safe carry?

Yes, this is a folding knife with a locking mechanism that keeps the blade secure during use. When folded, it can be carried in a pocket or pack without requiring a separate sheath.

Warehouse Find | No.08 Stainless Steel Folding Knife - Outdoor

stainless steel
Lifetime warranty

The 3-second version

110-decibel survival whistle integrated into handle for four-season use
Serrated blade section cuts through rope, webbing, and branches
Handle withstands -40°F to 176°F without cracking or softening
Final sale—no returns or exchanges
Discontinued model with limited availability

Why it's on GiftsFeed

Folding Survival Knife with Integrated Whistle and Serrated Edge

Most pocket knives treat survival features as afterthoughts—a tiny whistle that freezes shut or a saw edge that's too short to cut anything substantial. This design builds those tools into the structure itself: a whistle bored through the handle that actually reaches signaling volume, and a serrated section long enough to work through cordage or kindling.

The temperature rating matters if you've ever had a polymer handle crack on a winter hike or a blade lock fail because the frame expanded in heat. This knife is engineered to function across a 216-degree range, which covers the conditions you'll actually encounter outdoors rather than the mild days when you don't need reliable gear.

Good gift when

Hikers and campers who need backup signaling capability
People who want one reliable tool instead of multiple gadgets
Anyone spending time in extreme cold or heat
Outdoor workers who need a knife that won't fail in weather

Skip it if Final sale item with no returns or exchanges, though manufacturer warranty remains in effect

Specs

Blade Material: 12C27 Sandvik stainless steel
Blade Thickness: 0.1 inches
Blade Features: Smooth edge with serrated section
Handle Material: Polymer
Temperature Range: -40°F to 176°F
Whistle Output: 110 decibels
Additional Features: Integrated shackle key, textured grip zone
Color Options: Outdoor Blue, Outdoor Orange, Outdoor Brown Red, Outdoor Brown Green
Warranty: Limited lifetime (manufacturer)
Origin: Made in France

What's included

No.08 folding knife with integrated whistle

If you're giving it

No sizing to guess

Final sale with no returns, though manufacturer warranty applies.

The details

This compact folding knife packs survival features into a pocket-sized tool. The blade combines a smooth cutting edge with a serrated section for sawing through rope, branches, or webbing. An integrated whistle built into the handle produces 110 decibels—loud enough to signal across distance in emergencies—and works in all seasons without freezing or clogging.

The handle is built to withstand temperature extremes from -40°F to 176°F, so it remains functional whether you're winter camping or crossing desert terrain. A textured grip zone keeps the knife secure in wet or cold conditions, and the shackle key lets you open or tighten common hardware without carrying separate tools.

The 12C27 Sandvik stainless steel blade holds an edge through repeated use and resists corrosion when exposed to moisture. At 0.1 inches thick, the blade provides enough heft for camp tasks without the bulk of a fixed-blade knife. The folding design slips into a pocket or pack without a sheath, and the locking mechanism keeps the blade secure during use.

Available in four outdoor-ready colors, each with a polymer handle that won't crack in freezing temperatures or soften in heat. The knife measures compact enough for everyday carry but delivers the capability you need when conditions turn demanding.

Opinel USA

Warehouse Find | No.08 Stainless Steel Folding Knife - Outdoor

French pocket knife built for extreme conditions with 110-decibel whistle and temperature-resistant grip

$38.25$4515% offat opinel-usa.com

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Ships and sold by Opinel USA. About this merchant

The 3-second version

110-decibel survival whistle integrated into handle for four-season use
Serrated blade section cuts through rope, webbing, and branches
Handle withstands -40°F to 176°F without cracking or softening
Final sale—no returns or exchanges
Discontinued model with limited availability

Cheaper alternatives

Questions

How loud is the integrated whistle?: The whistle produces 110 decibels, which is loud enough to be heard over significant distance outdoors. It's designed to work in all four seasons without freezing or clogging, making it reliable for emergency signaling in any weather condition.
What is the serrated section used for?: The serrated area of the blade is designed to cut through rope, webbing, branches, and other fibrous materials that are difficult to slice with a smooth edge. It provides sawing capability without requiring a separate tool.
Can this knife handle extreme temperatures?: Yes, the polymer handle is rated to withstand temperatures from -40°F to 176°F without cracking, softening, or losing structural integrity. This makes it suitable for winter camping, desert hiking, and other environments with temperature extremes.
What is the shackle key for?: The built-in shackle key allows you to open, close, or tighten shackles and similar hardware commonly found on outdoor gear, boats, and climbing equipment. It eliminates the need to carry a separate tool for this purpose.
Is this item returnable?: No, this is a final sale item with no returns or exchanges accepted. However, Opinel's limited lifetime warranty still applies to cover manufacturing defects and quality issues.
Does the knife fold for safe carry?: Yes, this is a folding knife with a locking mechanism that keeps the blade secure during use. When folded, it can be carried in a pocket or pack without requiring a separate sheath.