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Coupang delivers inside Korea only, so we link to the brand’s own page instead. The price above is the Korean retail price.
Innershield Layer ZLF
A defensive blade with an inner-fiber build known for its ball-gripping touch. ZL fiber adds flexibility and lightness for sharp, steady chops.
💡 Who this suits
Lower reaction speed, suited to steady, control-oriented play, with a soft feel that makes it easy to control.
About this product
Reaction 5.5, vibration 4.9 — comfortably last of the 45 blades here, and 4.1 below 44th place (Diode Pro at 9.6).
Reading those numbers as weakness misses the product entirely. Innershield is a defensive blade: when you chop, a blade that springs sends the ball up. Low return is what keeps a chop low.
The 5.1mm thickness serves the same end — thinner means less spring.
₩195,000. It makes sense only if chopping to survive and create openings is genuinely your game. Bought out of curiosity by an attacking player, it is simply a blade that will not put the ball away.
What the numbers say
Inner 5-ply + 2 ZL-Fiber plies 5.1mm. Its reaction of 3.7 ranks 46 of 46 blades, among the lowest. It is on the more flexible side. Based on the manufacturer’s published figures.
This paragraph is not a copied review — it is generated from the figures and rankings collected on this site, and changes when they do.
Where this blade sits
Reaction and vibration figures Butterfly publishes for 46 of its blades (official 1–15 scale). Further right means more reaction; higher means more vibration. Neither axis is "better" — they describe character. Other brands use different scales and are not mixed in.
Manufacturer figures
Butterfly official, 1-15Each brand uses its own scale, so these numbers cannot be compared directly across brands
Not shown
Not published — Official Spin (the brand does not publish this figure)
Weight 84g
Full specifications
| Playing style | Defensive |
| Grip type | Shakehand |
| Construction | 5-ply + 2 ZL-Fiber plies |
| Carbon position | Inner |
| Plies | 7 |
| Blade size | 166 × 155mm |
| Thickness | 5.1 mm |
| Weight | 84 g |
| Handle types | FL, ST |
| Made in | Japan |
Rubbers that pair with this blade
Real player setups and level-based recommendations come first.

Rozena
Any level · Defensive (chopping) · forehand

Donacle Long-1
Any level · Defensive (chopping) · backhand

Best Anti
Any level · Defensive (chopping) · backhand
A steady seller since 1967Sriver
A slower blade — easier-handling rubbers suit it