The GSI Outdoors Microlite insulated vacuum bottles are perfect to keep your tea steaming hot, your water ice cold and your soup that perfect, piping hot temperature. The incredibly lightweight, thin-walled, MicroLite 720 Twist vacuum-insulated bottle provides 12 heat and 24 hours of cold retention while being 1/3rd lighter than traditional designs. Impossibly thin, 2mm walls are actually thinner than most single wall plastic bottles for an amazingly compact footprint that fits anywhere. 18/8 stainless steel boasts unrivaled purity and durability. Secure, screw top cap includes leverage enhancing lobe which makes opening frozen bottles easy- even with mittens or gloves. Leash provides convenient attachment point.