Seirus Heatwave ST Whiteout 3N1 Mitt

We built the Whiteout Mitt to adapt as fast as the forecast changes. Because winter rarely sticks to one setting, and your gear shouldn't either. With a true 3-in-1 design, it gives you layered versatility in a single, high-performance system that handles everything from high-output treks to deep freeze standstills.

At its core, this mitt system is engineered for temperature control and protection. The removable Heatwave™ inner glove reflects your body heat and boosts warmth. The shell features 240g Heatlock™ insulation plus a DryHand™ waterproof insert to block out the elements. Worn together or apart, each layer is built to perform—no matter how you wear it.

The Whiteout thrives in variable, cold-weather conditions. Think snow-covered trails, alpine ridgelines, icy morning commutes, or shoulder-season unpredictability. Wherever your adventure takes you, this mitt has the range to match your pace and your environment.