Chiropractor creates football collar meant to thwart neck injuries, concussions

In an effort to look like Jack Lambert, one of the National Football League’s most feared tacklers, then-high school football player Patrick Kerr wrapped a football neck roll, called an Adams Roll, in medical tape and placed it around his neck.
Collar absorbs, disperses tackle impact

Luke Kuechly wearing experimental neck collar in 2017 - ESPN - Carolina Panthers Blog- ESPN

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Successfully Managing Chronic Neck Pain and Headaches with The Cervigard FHP Therapy Collar - AgileMSK - Neck Pain Solution

Postural Orthostatic Tachycardia Syndrome (POTS), the Vagus Nerve and Cervical Spine instability – Caring Medical Florida

How to Treat Stiff Neck After Direct Trauma

The Class of '90: Where Are They Now? - The New York Times

$200 Q-Collar is designed to prevent athlete brain injuries