Features:Fits most 1000ml water bottles.Be used in a single-layer aluminum or a stainless steel bottle， prevent hand burns.Protect the bottle body.It has a removable strap， easy to carry.With a function of thermal insulation，to keep bottles warm longer.Soft， durable material is easy to clean.Specifications:Material: NeopreneColor: Blue/BlackDiameter: About 12.5cm / 4.9inHeight: About 23cm / 9.0inThickness: About 4.5mm / 0.1inWeight： 48g / 1.6ozPackage includes:1 * Bag