These suspenders were adopted by the British RAF (Royal Air Force) and later by the Army, Navy, and Air Force, for No. 1 (Formal) and No. 2 (Service Dress) dress trousers, and were used for over 50 years. Durable leather is used for the button loops, and they are made to be sturdy. The product faithfully reproduces the materials, leather quality, printing, and other details. ■ Colors: Brown, Gray ■ Size/Capacity Size: Free (Belt width 3.5cm) *Please specify the color in the comments when purchasing. ■ Materials: Rubber x Leather *Please note that shipping will take approximately one week.