YETI Rambler 42 Oz Mug With Straw Lid-Firefly Yellow

Firefly Yellow gives YETI's biggest straw mug ever a bold, high-visibility finish that stands out anywhere it goes, and it is built for the long haul. The Rambler 42 Oz Mug With Straw Lid is designed for hydration that does not quit, whether you are commuting before sunrise, powering through a workout, or sipping something cold through an entire workday.

Double-wall vacuum insulation keeps drinks cold for hours, so the last sip tastes as good as the first, and the mug's oversized capacity means fewer refills and more time actually working. The fan-favorite Straw Lid clicks into place and delivers a steady, no-spill sip, which means you can finally retire the single-use straws cluttering your desk drawer.

Built from durable, dishwasher-safe stainless steel, this mug is designed to survive daily commutes, gym bags, and cupholders without losing its cool composure or its Firefly Yellow finish. It fits into standard cupholders, so it rides along on road trips and daily errands just as easily as it sits on a desk.

For teams building a corporate gifting or employee recognition program, the Firefly Yellow Rambler 42 Oz Mug With Straw Lid becomes a canvas for laser engraving that turns a drinkware piece into a lasting reminder of your brand. Through SWAGHQ, this mug can be laser engraved with company logos, event names, or personalized messages, creating a giveaway that recipients actually use every day instead of tossing in a drawer.

Order in bulk for client gifts, onboarding kits, or milestone recognition, and expect a fast turnaround with a decoration guarantee backing every order. Firefly Yellow's bright, energetic tone is a natural fit for outdoor brand activations, safety-conscious industries, or any program that wants its swag to be seen from across the room.