You can get an appreciation for how vexing and commonplace the problem of ruffled, untucked shirts is in the military by the variety of products
FlexRS is a proprietary low-profile stretch ripstop material which looks like a regular shirt, but performs like a BDU. Our FlexRS ArmorSkin Base Shirt also features built-in anti-odor treatment, durable water repellent coating, and combines with our FlexRS ArmorSkin XP to make the ultimate comfort uniform.
Blauer 8361 FlexRS Base Long Sleeve Shirt
Galls Flexible Waist Belt
USMC UNIFORM ACCESSORIES
FLEX-BELT HIDDEN TAILOR SHIRT STAY
USMC UNIFORM ACCESSORIES
MERCHANT MARINE ACCESSORIES
【IUDKYHUK】 Shirt Stay for Men, Stretchable and Adjustable Waist Belt with Flexible Comfort and Silicone Touch Points (A+B)
Elastic Shirt Stay for Men, Stretchable and Adjustable Waist Belt with Flexible Comfort and Silicone Touch Points
USMC UNIFORM ACCESSORIES
Shirt Stay Hidden Tailor Belt - New Improved Quality
NAVY UNIFORM ACCESSORIES
Flex-Belt The Hidden Tailor Belt fits over the shirttail and
Hidden Tailor by Flex-belt
Hidden Tailor Flex Belt, Officials Plus