Abstract: Disclosed herein are chin guard devices and systems for use with a helmet. The chin guard device may include a cupped portion comprising a front face and a rear face, wherein the front face is opposed to the rear face, wherein the rear face is configured to receive the chin of a wearer; at least one strap attached to the cupped portion; and at least one securement device attached to the at least one strap. The securement device may be configured to releasably secure the strap to the helmet, the securement device including a female component comprising a hollow body with a bottom wall, two side walls, a cavity defined by the bottom and back walls, a substantially open top communicating with the cavity, and a plurality of locking slots at one or more top portions of the side walls; and a male component having first and second opposed ends, and first and second opposed sides, the male component configured to connect to at least one strap end and comprising a raised portion at one or more ends.