Stealth Jump
From Inkipedia, the Splatoon wiki
The Stealth Jump ability hides the landing point marker normally visible to all players when performing a Super Jump. Super Jump speed is slightly reduced as a result. This ability is restricted to shoes as a main ability.
In-Depth Ability
This ability hides the circle that appears at you super jump location, but it increases the super jump's time.
Use
The Stealth Jump's only use is for stealthy, hard to track super jump, but it extends the super jump's time from 4.10 seconds to 4.94 seconds.
Gear
Stealth Jump is the main ability of: