BlenderBottle SportMixer Stainless Steel Shaker Bottle, 28-ounce, Black/Red Single-Wall Stainless Steel, Non-Insulated shaker bottle with Blender Ball wire whisk inside Made with stain and odor resistant 18/8 stainless steel for added durability 28-ounce capacity (to brim of the cup). NOTE: measurements only go to 27 ounces Dishwasher safe, BPA- and phthalate-free Backed by Blender Bottle's Leak Proof Guarantee