SPLASH-PROOF LID: Sip through spout or add straw to enjoy outdoors, on the go, and more! GREAT FOR ON THE GO: Dual lid design offers versatility whether you’re sipping on the go, at the office, or an outdoor party. VARIETY OF USES: The Sleek Tumbler accommodates hot and cold drinks. Its slim shape fits in most cupholders. KEEPS DRINKS HOT OR COLD: This mug is insulated with durable stainless steel to keep drinks cold for 9 hours with ice and hot for up to 3. DURABLE AND FOOD-SAFE: High-quality stainless steel construction helps to prevent damage while transporting. Free from BPA & lead.