Specifications include, but are not limited to: 1. Unless otherwise specified, all T-shirts must be a blend of 50 percent cotton and 50 percent polyester, 5.4 ounce or better, taped crew neck with a double needle hemmed short sleeve and have moisture wicking properties. 2. All shirts for youth and teen sports programs shall be imprinted on the front with a full-chest design, and City logo. 3. All shirts for youth and teen sports (except basketball; see #4 below) shall have four (4”) inch numbers on front and six (6”) inch numbers on the back of the shirt. In each set of shirts, all numbers must be different. Numbers may be one or two digit combinations of the following numerals: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. One exception is “0” will not be accepted as a single digit number. Numbers on the front and back must be the same and of the same color. Ink colors must be contrasting to the shirt color and visible from 30 feet away. Numbers must be silkscreened: not ironed on.