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.