What episode does Luffy use Gear 4?

Monkey D. Luffy used his Gear 4: Boundman (aka Bounceman) for the first time in episode 726 of the One Piece anime in his battle against Donquixote Doflamingo, the Heavenly Demon.

Gomu Gomu no Mi/Gear 5 Techniques, One Piece Wiki

One Piece Teases the Limits of Luffy's Gear Fifth Form

Luffy vs Doflamingo's Awakening - GEAR 4 - One Piece 727 [HD

What episode does Luffy use Gear 4? - Quora

When does Luffy first unlock every gear transformation in One

Monkey D Luffy Land of Wano Extra Battle Gear 4 Ver One Piece

When does Luffy use Gear 5?

The 'One Piece' Episodes Where Luffy Gets Each of His Gears, Explained

What episode does Luffy use Gear 4?

When will Luffy's Gear 5 be animated in One Piece?

One Piece Stuns With Luffy's Newest Gear Fourth Moment: Watch