In terms of color, the "Light blue" has *no* tendency toward bright colors (which is deliberately concealed by the product photos), but rather a tendency toward silvery: very elegant. The width is adjusted using Velcro fasteners, *without* stretchy elastic bands. The black metal buckle is around 6 cm wide, with two bars each around 2.7 cm wide. The inner lining is black and seems to be a robust polyester fabric.