Sierra Jacket Women's - Black

Compact Power, Built for Comfort

The Powersheer® Mini 2250mAh 7.4V Battery is our lightweight Li-Ion power source designed for maximum comfort and performance. With USB-C charging, an easy-to-read LED battery life indicator, and a compact size, it’s the perfect match for most 7.4V heated garments—delivering reliable warmth without added bulk.

Power Where You Need It
Our battery pocket is designed for seamless integration with your heated gear. These secure, low-profile pockets keep your battery packs in place for optimal comfort and performance—so you can move freely while staying warm all day long.

Custom Fit, All-Day Comfort
An internal waist cinch lets you fine-tune your fit with a quick pull—sealing in heat and blocking out wind. Whether you’re layering up for the cold or trimming bulk on the move, it adapts to you.

Essentials, Safely Stashed Inside
An internal storage pocket gives you a secure spot for your phone, wallet, or trail map—keeping the things you need close and protected. Whether you’re on the move or posted up at camp, it’s storage that stays out of the way but never out of reach.

Essentials, Safely Stashed Inside
An internal storage pocket gives you a secure spot for your phone, wallet, or trail map—keeping the things you need close and protected. Whether you’re on the move or posted up at camp, it’s storage that stays out of the way but never out of reach.

Fast On, Fast Off
A full-length front zipper makes layering simple and temperature control effortless. Whether you're gearing up or winding down, it's all about convenience, comfort, and staying ready for whatever's next.

Powerful Warmth, Precisely Delivered

Mobile Warming® Heating Technology uses ultra-thin, flexible heat pads powered by lightweight rechargeable batteries. Strategically placed throughout the garment, these pads deliver consistent, adjustable warmth at the touch of a button—so you stay comfortable in any condition, without the bulk.

Bluetooth Control at Your Fingertips

MW Connect® Bluetooth Control Technology lets you wirelessly manage your heat settings right from your smartphone or smartwatch. Adjust temperature levels, monitor battery life, and customize your comfort—anytime, anywhere.

Waterproof and Breathable

Rainguard® Technology features a field-tested polyurethane shell with fully sealed seams to block out rain, sleet, and snow. Engineered for extreme conditions, it delivers complete waterproof protection without sacrificing breathability, mobility, or comfort—no matter the climate.

Shielded from the Storm

Wind-Shark™ Technology combines a breathable windproof membrane with a water-repellent outer layer to block harsh gusts and light precipitation. It helps retain core warmth while allowing excess heat and moisture to escape—perfect for cold, windy environments.