Two-Stripe Mesh
From Inkipedia, the Splatoon wiki
The Two-Stripe Mesh is a type of headgear in Splatoon. It is a 1-star item produced by Krak-On and comes with the main ability Special Saver.
This item can be purchased from Cooler Heads for 700 Cash.
Appearance
The Two-Stripe Mesh is generally a blue cap with a white backside along with two black and blue stripes that go around it.