Crafted from durable 18/8 stainless steel with a non-slip silicone base, it's dishwasher safe and free from harmful chemicals. Plus, it fits snugly in most cupholders, making it perfect for your daily commute or adventures.  Double wall vacuum insulated to maintain temperature   Straw lid  Non-slip silicone base   Fits most cupholders   Made from 18/8 Stainless Steel   Powder coat finish   Dishwasher safe   BPA, BPS, and BPF free   15 Hours Cold and 7 Hours Hot