Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Features:Made of high-quality and lightweight 7072 aluminum alloy.With a looped seal topper for easy carrying.Attaches easily to your backpack.Specifications:Capacity: 530ml / 750ml (optional)Material: 7072 aluminum alloySize: 19 * 7.3cm / 7.5 * 2.9in， 25.5 * 7.3cm / 10 * 2.9in (H * D)Weight: 114g / 4oz， 143g / 5ozPackage List: Y0737-11 * Fuel Storage BottleNote: Fuel is NOT included!