Apparently the toe shoe is too unmanly and detrimental to a proper military appearance for American soldiers:
Vibram, one of the leading makers of the trendy footware, claims that its FiveFingers shoe “allows our anatomy to work naturally and move more freely.” FiveFinger fanatics claim that the shoe strengthens muscles in the feet and lower legs and improves their range of motion, balance and agility.
But in the military, it seems to come down to image, not performance, reports the Washington Post.
“Effective immediately, only those shoes that accommodate all five toes in one compartment are authorized to wear” because toe shoes “detract from a professional military image,” states the military notice.
I have no idea if Vibram’s claims are true, but I do rather agree with Thomas Ricks, who wrote “An army that is more concerned with looks versus results IS a matter of national security”.