"US Navy Authorizes the Use of Minimalist Footwear, including Vibram Fivefingers, with PT Uniforms"

Take that, Army!  (The Navy always YELLS):

"THIS NAVADMIN AUTHORIZES THE WEARING OF MINIMALIST FOOTWEAR WITH THE NAVY PHYSICAL TRAINING UNIFORM (PTU) DURING COMMAND/UNIT DIRECTED PHYSICAL TRAINING (PT), INDIVIDUAL PT, AND ACTIVITIES TO INCLUDE THE SEMI-ANNUAL PHYSICAL READINESS TEST (PRT).

"2.  MINIMALIST FOOTWEAR IS DEFINED AS SHOES THAT ALLOW THE FOOT TO FUNCTION NATURALLY WITHOUT PROVIDING ADDITIONAL SUPPORT OR CUSHIONING.  ANY SHOE THAT IS MARKETED AS MINIMALIST OR BAREFOOT-LIKE FOOTWEAR (CURRENT TYPES SUCH AS THE  - VIBRAM FIVE FINGERS, NIKE FREE SHOES, VIVO BAREFOOT SHOES, INOV-8 SHOE, AND FEELMAX) ARE AUTHORIZED FOR WEAR WITH THE PTU."

Original from the Navy here.  Prior Military-related posts here.