The most protective hat in the world as documented in 2 clinical papers.
Original hood style with built in thyroid protector.
Remarkably comfortable as weight does not touch top of head.
S – 21-22”
M – 22 1⁄4”- 23 1⁄4”
L – 23 1⁄2” +
These 503 Hoodies are a classic in headwear and thyroid protection. Its design is meant to provide complete protection all around the head and neck/thyroid. The weight is placed on the shoulders instead of the head preventing fatigue.