Ali Huang(TM) Double Layer Stainless Steel Vacuum Bottle Outdoor Sport Water Bottle with Lock-with Multifunctional Cycle Head Wear As a Gift-the Scarf Is Varied, Not All the Same As the Picture Materials:double layer food grade stainless steel+pp;Large volume of 500ml Cap is made of antibacterial pp,safe and healthy;Size:5.8x24.5cm/2.3x9.6inch Direct drinking mouth, easy to clean Double-layer stainless steel and vacuum, ideal thermal insulation effect Suitable for: Bicycle, travel, business trip, hike, picnic or other sports