If you could remove one AR 670-1 regulation which would it be?

There use to be a Reg against using umbrellas, but I think their use should be permitted in Dress uniforms.

The one referring you to another reg. and that one to another and so on until you are referred back to 670-1. Oh well that's in all Regs tho

None. They were designed to implement uniformity and attention to detail, self-discipline, and accountability. It revealed funcionality, operability, and cleanliness of the uniform. It reinforced esprit de corps while in a group formation. It exercised self discipline while one was out and about while in uniform either on or off post. It became the base of how you treated your personal weapon and TO&E, and your MOS specific equipment. One little part missing or out of place can mean life or death for yourself and your battle buddies. Iʻm done. As you were.

Facial hair. We should be allowed to grow beards.

I would allow sunglasses to be worn on the head or from the front of the uniform. Sometimes you just need your eyes un-shaded for a second, but don't have the time to zip them up in a case to stuff in your pocket, or shove them in unprotected to get scratched up by sand in your pocket.

Female nails. I think we should be able to do French tips or natural colors on our nails while in uniform.

Females can wear earrings

Fleece cap in ACUs. Unless you are on a detail in cold weather OR in the field, there is NO reason for use of the watchcap as a cover in ACU duty uniform. I just saw a soldier wearing this in 80 degree weather. Dumbest change I've seen in the reg since the attempt to limit tattoos.

The part I would have taken from 670-1 would be the carrying of an umbrella. I advocate the carrying only when not in a formation.

Zip it up or take it off. That time inbetween being hot or cold.