Meet the Fieldside™ Tumbler — built for staying out longer. This 40oz stainless steel vacuum-insulated tumbler keeps drinks ice-cold or piping hot for hours, whether you're at the tailgate, campsite, ski lodge, or ballfield. The innovative modular handle system lets you customize your setup for every adventure. The Narwhal Warmer™ is included and fits seamlessly into the handle to keep your hands warm on cold days. Add on the Partyside™ Flask when it’s time to celebrate. Features 40oz double-wall vacuum-insulated stainless steel Keeps drinks hot or cold for hours Modular handle fits The Narwhal Warmer™ & Partyside™ Flask Dual-function straw + sip lid Leak-proof, travel-friendly design Durable powder-coated sweat-free finish Fits most cup holders High-strength fiberglass-infused nylon handle for impact strength and UV resistance The Narwhal Warmer™A rechargeable hand warmer and portable power bank designed to fit seamlessly into Narwhal Trading Co. drinkware handles. 3 adjustable heat settings Doubles as a portable power bank, take your phone from 0 to 100%. USB-C rechargeable Up to 6 hours of warmth Splash-resistant design Partyside™ FlaskA compact 2.4oz stainless steel flask designed to swap directly into your Narwhal handle system. 2.4oz capacity Durable powder-coated 304 stainless steel Compact, adventure-ready design Perfect for tailgates, campfires, ski trips, and celebrations on the go Care Instructions are found here. Manufacturing Details Product designed in the USA Narwhal Trading Co. handles made in the USA Stainless steel tumbler manufactured in China STAY WARM. STAY AWHILE. STAY ADVENTUROUS.