LP Cervical Collar is made of 17mm medium density foam, covered by cotton stockinette, with a contoured cut for the chin. A hook and loop closure in back for easy adjustment
Sizing Chart (circumference of the neck) :
S: 27.9 - 34.3cm
M: 34.3 - 39.4cm
L: 39.4 - 44.5cm
XL: 44.5 - 48.3cm