Is the vest comfortable, does it add drag underwater?
The FRV is remarkably comfortable to wear. Some users initially report feeling the activation unit pressed against their back. (An optional back pad comes standard with your FRV.) However, most users adjust quickly and report that after a short get-acquainted period, the FRV virtually disappears. Early tests from deep divers report no significant additional drag or the tendency to rotate or pull the divers off course.