Tumbler not included Made of synthetic leather (double-sided) with three adjustable straps Features an adjustable shoulder strap and three gold metal buckles Ideal for tumblers with body diameter ranging from 2.84 inches to 3.5 inches or from 72 mm to 89 mm Sample tumblers used: Aquaflask 18 oz, 22 oz, 32 oz and 40 oz FREE text engraving up to 8 letters Actual color may slightly vary due to lighting difference