☕ Sip, Savor, and Stay Stylish! Designed to fit in car cup holders and under single-serve brewers. Convenient design for sipping on the go—no lids to lose! BPA-free materials for a safer planet. Enjoy spill-free adventures with a leak-proof lid. THERMALOCK insulation keeps your drinks at the perfect temperature. Leak-Proof Lid Hot for 7 Hours Cold for 18 Hours The Contigo Byron Vacuum-Insulated Stainless Steel Travel Mug is a 20oz, eco-friendly beverage holder designed for both hot and cold drinks. With a leak-proof lid and THERMALOCK double-wall insulation, it keeps beverages hot for up to 7 hours and cold for up to 18 hours. Its one-handed operation and textured grip make it perfect for on-the-go lifestyles, while its durable stainless steel construction ensures long-lasting use.