Butterfly · DEF
Innershield Layer ZLF
5W+2 ZLF · Inner
Specifications
- Playing style
- DEF
- Price
- Not published
- Weight
- 86 g
- Thickness
- 5.1 mm
- Plies
- 7
- Composition
- 5W+2 ZLF
- Outer ply
- Willow
- Core wood
- Ayous
- Carbon type
- ZLF
- Fibre placement
- Inner
- Blade size
- 166 × 155 mm
- Handle types
- FL · AN
- Made in
- Not published
- Release year
- Not published
Metadata confidence: Secondary sources
Blade construction
Estimated5W+2 ZLF · Inner
7 plies · Willow surface · ZLF inner fibre · Ayous core · 5.1 mm total
One blade, drawn as technical linework at real shakehand proportions. The laminated edge along the crown and right rim exposes every ply boundary in the stack. Edge depth is illustrative because physical veneer thickness is not published.
Stack order · outer face to outer face
1 · Outer ply
Willow
2 · Medial ply
Limba
3 · Fibre layer
ZLF
4 · Core
Ayous
5 · Fibre layer
ZLF
6 · Medial ply
Limba
7 · Outer ply
Willow
Willow
Outer ply · layers 1 and 7
Light and springy · Lively release
Limba
Medial ply · layers 2 and 6
Softer touch · Longer dwell
ZLF
Fibre layer · layers 3 and 5
Keeps the flex · Larger sweet spot
Ayous
Core · layer 4
Lower weight · Wider sweet spot
Stack order — face A to face B
- 01WillowOuter ply
Light, springy veneer — soft catch with a lively release out of the blade.
- 02LimbaMedial ply
Soft, open-grained outer veneer — long dwell, a wooden feel and easy spin on slow strokes.
- 03ZLFFibre layer
Pure zylon fibre — light reinforcement that keeps flex and feel while widening the sweet spot.
- 04Ayous — coreCore
Very light medial or core wood — keeps the blade low in weight and widens the sweet spot.
- 05ZLFFibre layer
Pure zylon fibre — light reinforcement that keeps flex and feel while widening the sweet spot.
- 06LimbaMedial ply
Soft, open-grained outer veneer — long dwell, a wooden feel and easy spin on slow strokes.
- 07WillowOuter ply
Light, springy veneer — soft catch with a lively release out of the blade.
Secondary sources · 7 of 7 plies with published material · stack order unconfirmed
About this blade
Butterfly Innershield Layer ZLF is a 7-ply blade built around ZLF fibre placed inner, with Willow on the playing surface and a Ayous core. Willow in the outer layer: Light, springy veneer — soft catch with a lively release out of the blade. Limba in the medial layer: Soft, open-grained outer veneer — long dwell, a wooden feel and easy spin on slow strokes. Ayous in the core: Very light medial or core wood — keeps the blade low in weight and widens the sweet spot. ZLF in the fibre layer: Pure zylon fibre — light reinforcement that keeps flex and feel while widening the sweet spot. Physically it measures 5.1 mm thick, around 86 g. Butterfly positions it for def play.
TTDNA ratings
NormalizedPerformance
Construction
Material properties
Playing profile
A TTDNA blade rating measures how much of the named characteristic a blade has. For descriptive rows — flex, stiffness, vibration, head heaviness, weight, thickness, carbon feel, softness, technique requirement, spin sensitivity — a higher number means more, not better.
TTDNA ratings are normalized comparison values, not laboratory measurements. They are built from published specifications, technical sources and structured product evidence, converted to one 0–100 scale. Where a directly comparable measurement is unavailable, the value is an evidence-based estimate. Overall-style scores are composites of several characteristics. Methodology