Ergonomic Structural Design3 layer sponge support pressure on the cervical spine, V shape under the jaw and U shape fits your clavicle, ternary form load-boarding include upper part traction load-boarding, middle part main load-boarding, bottom part disperse bearing. Elastic&BreathableFoam+mesh fabric, feature good toughness, uniform pressure distribution, avoid local compression. The mesh fabric feature perfect breathability and good sense of touch, even can wear in hot summer. Neck AdjustableThe integrated sticker strap allows the brace to be easily adjusted to the length of the neck brace at will according to your needs. Fit neck circumference: The neck brace accommodates neck circumferences ranging from 18-20 inches for men and women. Advantageous Functionshelp correcting poor seating posture and neck forward, relief oppression of cervical vertebra. Great for injury support, postoperative rehabilitation, overtired. Wide Applicable Groupnot only people who always on the phone, office worker, but also driver who are driving for long time, improper seating or sleeping posture, people who are suffering cervical discomfort must need this neck brace. It is great gift for them.