The Contigo Byron 2.0 Stainless Steel Travel Mug with SNAPSEAL Lid and grip Blue Corn, 24 fl oz. keeps drinks hot up to 9 hours or cold up to 21 thanks to THERMALOCK™ double-wall vacuum insulation. The one-piece SNAPSEAL™ lid allows for one-handed drinking with no lids or caps to remove or misplace and is leak-proof when closed. Plus, a subtly textured grip offers a secure hold.