The Lagom 16 Oz. Travel Insulated Tumbler features double-wall construction. It also includes a straw and a press-on lid with slide-closure for easy use with hot & cold beverages. With the reusable stainless steel straw, your recipients will make it their favorite way to drink their cold beverages. With the silicone-tipped straw, the Lagom tumbler is the most comfortable sipping experience imaginable.