Design not bad, but some suggestions
1 - needs to be at least somewhat elastic
2 - needs something to stay on in really cold conditions
3 - under no circumstances should the phrase "remove before flight" appear anywhere near the, er, peccant part
1 - needs to be at least somewhat elastic
2 - needs something to stay on in really cold conditions
3 - under no circumstances should the phrase "remove before flight" appear anywhere near the, er, peccant part