
Hareline CDC28 Fly Tying Material
- Size: 1 Count (Pack of 1)
- Material: Fly Tying Material
- Color: Blue Wing Olive
- Target Species: Mackerel
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small pack of Blue Wing Olive dyed CDC feathers for tyers working on mayfly dry fly and emerger patterns.
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ASIN: B001U8D98GCategory: Fly Tying Materials
Overview
Hareline's CDC28 is a small pack of cul de canard (CDC) feathers dyed Blue Wing Olive, weighing about 0.1 ounces and sold as a single count pack for fly tying.
CDC feathers come from a duck's preen gland and carry natural oils that help them float, which is why fly tyers reach for them on dry flies and emerger patterns rather than streamers. The Blue Wing Olive dye ties it to BWO mayfly imitations, a common trout pattern.
- Cul de canard (CDC) feathers
- Blue Wing Olive dye
- 0.1 ounce pack
- Single count pack
Who it's for
Fly tyers building BWO dry flies or emerger patterns. It is not intended for spin or bait fishing, since it is a raw tying material rather than a finished lure.
Pros and cons
- Natural preen oil aids floatation
- Blue Wing Olive dye matches common mayfly hatches
- Sized for precise dry fly and emerger work
- Very small quantity at 0.1 ounces
- Requires fly tying skill and tools to use
Performance notes
CDC feathers retain natural preen oil that helps finished flies float without heavy floatant, and the fine barbules give patterns a soft, mobile look in the water that stiffer hackle cannot match.
Specifications
| Brand | Hareline |
|---|---|
| Dimensions & fit | |
| Size | 1 Count (Pack of 1) |
| Item Weight | 0.01 poundslower than 95% of 38 fly tying materials |
| Construction & materials | |
| Material | Fly Tying Material |
| Color | Blue Wing Olive |
| Included components | |
| Pieces | 1 |
| Other details | |
| Target Species | Mackerel |
| Technique | Cul De Canard |
| Special | Hareline Fly Tying Cul De Canard - Bwo |
Closest rivals on specs
Puglisi EPA1 Fishing Fibers- Item Weight 0.01 vs 0.02 pounds (-50%)
Frequently asked questions
What is Hareline CDC28 used for?
It is a pack of CDC feathers dyed Blue Wing Olive, used in fly tying for dry flies and emerger patterns.
Why do fly tyers use CDC feathers like Hareline CDC28?
CDC feathers carry natural preen oil that helps flies float, plus fine barbules that add movement in the water.
How much does a pack of Hareline CDC28 contain?
The pack weighs about 0.1 ounces and is sold as a single count.

