Bauer Lil' Sport Helmet with cage.

Bauer product. 

Featuring a lightweight EPP liner and comfort foam padding, the LIL’ SPORT provides impact protection for the game’s youngest players. The occipital adjustment contours to the back of their head for a more secure fit.

 One Size : 6 - 6 1/2 hat size, 18.8" - 20.4"

This helmet comes in Black, White or White/Pink (listed as pink)

Experts state that concussions are mainly due to acceleration or deceleration of the brain, and helmets may not prevent concussions caused by these forces.