A leather strap and a bit of hardened leather and krenshar hide make up this menacing black eyepatch.

Despite its name, the improved visual acuity provided by a corsair’s eyepatch is equally useful to landlubbers. Wearing this eyepatch has no negative impact on your eyesight—it appears completely transparent to you. While you wear a corsair’s eyepatch over your left eye, activating it grants you the ability to use see invisibility (as the spell) for 1 round. While you wear it over your right eye, activating it grants you the benefit of the Blind-Fight feat for 1 minute. Moving the eyepatch from one eye to another requires a move action that doesn’t provoke attacks of opportunity.
A corsair’s eyepatch functions a total of three times per day.

Prerequisites: Craft Wondrous Item, see invisibility.
Cost to Create: 1,500 gp, 120 XP, 3 days.