Sun Hat/Boonie is sewn to military specification MIL-H-44105B
This is a lighter weight cloth in a ripstop weave
that breathes well and is initially durable.
Consistent with other
cotton fabrics, the color will fade quickly, and over time the cotton
fibers will lose their strength under industrial wear and laundering.
| Size | Hat Size | Head Circum. |
| 7 | 56-57 cm | 21 7/8 |
| 7 1/4 | 58-59 cm | 22 5/8 |
| 7 1/2 | 60-61 cm | 23 1/2 |
| 7 3/4 | 62-63 cm | 24 3/8 |