Coffee's loyal commuter. The It Fits Travel Mug is an 18oz insulated stainless steel mug that — yes, really — actually fits in every car cup holder. The twist-on lid with flip-top opening is spill-proof and leak-proof, so your morning brew stays in the mug (not on the dashboard). Antimicrobial SiSA™ coating keeps the inside hygienic, double-wall vacuum insulation holds heat up to 8 hours and cold up to 36, and it's BPA-free for daily-driver peace of mind.