Anyone who needs a slim replacement sheath and values low weight, at 1.1 oz, and a compact 4.14-inch length.
Skip if
You want a leather sheath, or you need confirmation it fits your specific knife, since no compatibility list is given.
Material Plastic
Handle Plastic
Length 4.14 Inches
Weight 1.1 Ounces
Size One Size
Priced 128% above the category median ($15.37 across 32 tracked models)
Our scorecard
4.2/5overall
Owner rating4.3/5
4.3 average across 181 owner ratings
Popularity1.7/5
181 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other hand tools and workshop hand tools we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The CRKT D4040 is a plastic knife sheath that measures 4.14 inches and weighs just 1.1 ounces, so it adds almost nothing to a belt or pack. It ships in one size, with both the body and handle listed as plastic.
At $35 it sits at the high end for a plastic sheath, and the listing does not spell out which blades it fits. Even so, it has earned a 4.3-star rating across 181 reviews, which points to steady, if not heavy, buyer satisfaction.
Pros
Very light at 1.1 ounces and compact at 4.14 inches
Solid 4.3-star rating from 181 reviews
Material is clearly listed as plastic, easy to wipe clean
One-size design keeps the buying decision simple
Cons
$35 is steep for a plastic sheath
No knife-compatibility list, so exact fit is unconfirmed
No leather option for buyers who prefer it
Specifications
Material
Plastic
Handle
Plastic
Length
4.14 Inches
Weight
1.1 Ounces
Size
One Size
Performance notes
At 4.14 inches and 1.1 ounces, the CRKT D4040 is built for compact carry rather than heavy field use. The plastic construction shrugs off moisture better than leather, but the listing gives no detail on retention or belt-attachment style.
What buyers say
With 4.3 stars across 181 reviews, owners are largely satisfied, though there were no recorded monthly purchases in the data we reviewed, suggesting modest current demand.
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