How to Tie Hollow Fleyes with Squimpish Hair

Hollow Fleyes are built around sparse materials, controlled flare, and a large baitfish profile without excessive bulk. Squimpish Hair works especially well in this style when it is used as a layered synthetic fiber rather than treated exactly like natural bucktail.

This guide explains how to use Squimpish Hair for Hollow Fleye-style patterns, including material selection, reverse tying, thread dams, taper, density, fouling control, and choosing between standard Hair and XL.

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Follow the full Hollow Fleye technique with Squimpish fibers in our step-by-step video tutorial.

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Why Use Squimpish Hair for Hollow Fleyes?

Squimpish Hair is a synthetic fly tying fiber with a consistent diameter from root to tip. The natural-looking taper comes from staggered fiber lengths, which means the material can be cut, reshuffled, restacked, and blended while keeping control over the finished silhouette.

Because it retains little to no water, it is useful for larger Hollow-style flies where reducing water weight matters during repeated casting.

Which Squimpish Hair Length Should You Use?

Standard Squimpish Hair, 5"-7": a strong choice for most Hollow Fleyes, medium baitfish patterns, striped bass flies, and layered streamer profiles.

Squimpish Hair XL, 10"-12": best when you need a longer silhouette for musky, pike, large saltwater baitfish, or oversized predator flies.

You can also combine the two. Use standard Hair for internal support and color transitions, then add XL only where the extra length contributes to the outer profile.

How Much Material Should You Use?

Hollow-style flies are most effective when tied sparsely. Start with a small amount of Squimpish Hair and build the shape in stages. A thin veil of fibers can create more apparent volume in the water than a dense clump.

If the fly looks full while it is dry at the vise, it may already be too dense. Leave space between layers so water can move through the fly and the materials can breathe. Bulk is fine as long as it’s at the front of the fly.

How to Reverse Tie Squimpish Hair

Cut a sparse bundle of Squimpish Hair.
Reshuffle or restack the fibers so the ends are staggered rather than perfectly even.
Tie the material in facing forward over the hook eye.
Build a small thread dam directly behind the tie-in point.
Sweep the fibers backward over the thread dam.
Secure the angle with controlled thread wraps without crushing the material flat.
You can use super glue or light-cured acrylic instead of a thread dam to support the fibers and hold the desired angle.

The thread dam replaces some of the natural flare you would get from hollow deer hair. A larger dam creates more lift and profile; a smaller dam creates a flatter, more streamlined layer.

Can You Use Bucktail Under Squimpish Hair?

Yes. A sparse layer of natural bucktail can make an excellent structural base beneath Squimpish Hair. Bucktail provides natural flare and support while Squimpish adds length, consistent color, durability, and movement.

This hybrid approach is especially useful when you want a traditional Hollow Fleye framework but need more length than the available bucktail can provide.

How to Create a Smooth Taper

Avoid tying in a square-ended bundle. After cutting the fibers, pull or shuffle small groups so the tips finish at different lengths. This gives the outer edge of the fly a softer baitfish shape.

Build length progressively. Shorter inner layers can support longer outer layers and reduce the tendency for long fibers to collapse or wrap around the hook.

How to Prevent Fouling

Long synthetic fibers can occasionally wrap around the hook bend during casting. The most effective fixes are usually structural rather than cosmetic.

Tie with less material.
Use shorter support fibers underneath the longest layer.
Keep the longest fibers away from the hook bend when possible.
Use a sparse bucktail or slightly stiffer synthetic support layer.
On articulated flies, distribute length across multiple tie-in points instead of concentrating it at the rear.

How to Build a Hollow Fleye Profile

Think in layers rather than clumps. Begin with the shortest or most structural material and increase length as you move outward. Each layer should contribute either support, color, or silhouette.

For baitfish patterns, lighter belly colors can be placed underneath darker back colors. Accent fibers or flash can be added between layers rather than as one heavy strip on top.

How to Use Flash Without Overloading the Fly

Flash works best as an accent. Blend a few strands directly into Squimpish Hair or place a sparse layer between color transitions. Too much flash can overpower the natural movement and make the profile look stiff.

If you prefer a premixed option, Boutique Blends combine Squimpish fibers with coordinated flash and can be used for accent layers in Hollow-style flies.

Best Uses for Hollow Fleyes Tied With Squimpish Hair

Squimpish Hair can be used for striped bass baitfish, bunker and herring imitations, pike and musky flies, large saltwater patterns, deceiver-style flies, and other streamer designs that benefit from length without excessive water retention.

Common Hollow Fleye Mistakes

Too much material: the fly becomes bulky, harder to cast, and less mobile.

No support behind the reverse-tied fibers: synthetics may lie flat instead of creating the intended Hollow profile.

Using the longest fibers everywhere: reserve length for the outer silhouette or the tail and use shorter materials inside.

Perfectly even fiber tips: restack or reshuffle the bundle to create a more natural taper.

Over-tightening thread wraps: crushing the fibers can reduce the lift created by the thread dam.

Frequently Asked Questions

Can Squimpish Hair replace bucktail in a Hollow Fleye?

It can replace bucktail in many parts of the fly, but it behaves differently. Because synthetic fibers do not naturally flare like hollow deer hair, use a thread dam, reverse-tie technique, or a sparse bucktail support layer when flare is important.

Is Squimpish Hair good for large striped bass flies?

Yes. Standard Squimpish Hair works well for many striped bass baitfish profiles, while XL is useful when extra length is needed for larger bunker, herring, or predator-style flies.

Should I use Squimpish Hair XL for every large fly?

No. A large fly can still benefit from shorter internal layers. Use XL where the extra length contributes to the silhouette rather than throughout the entire pattern.