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Regular price $129.99
Regular price $159.99 Sale price $129.99
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Looking to add warmth to your outdoor activity? Then Fieldsheer heated Baselayers are a must for you. The Fieldsheer Bluetooth-enabled Ion heated baselayer shirt offers lightweight performance and our integrated Mobile Warming heating system. From skiing, hunting, and hiking to running or just spending time outdoors, the Ion shirt compliments your outerwear to keep a warm core. Its moisture-wicking, warmth, and stretch features make it a versatile heated baselayer in the winter, or a standalone shirt during outdoor activity in the Spring and Fall. The Ion is made from a 4-way stretch anti-microbial polyester-spandex blend that provides a comfortable next-to-skin feel. Flat-lock seams, moisture-wicking mesh liner, and side-stretch panels conform to your body and allow for maximum body movement. The Ion heated baselayer has integrated, concealed heating panels powered by sturdy yet lightweight 7.4-volt Mobile Warming heating system. The 7.4-volt system has 2 heating elements on the back that add heat to critical areas that keep your core warm. The Ion's 7.4-volt heating system can provide temperatures ranging from 135°F on high to 90°F on low. On high, expect 2.5 hours of heat, and on low, the Ion can provide heat for up to 10 hours! The Ion has 2 ways to adjust the temperature. First, the built-in touch control button. With a simple button push, you can select from 4 heat settings. Second, we've incorporated Bluetooth control with our MW Connect app. Through the MW Connect app, you can quickly toggle through all connected Mobile Warming devices and adjust individual heat levels to your liking. MW Connect allows you to get real-time updates on battery levels and update your garments when new firmware becomes available. All day, any weather, the Ion heated baselayer shirt is a versatile insulating layer that keeps you warm all winter long.

Stretch Polyester Fabric
88% Polyester, 12% Spandex
Chafe-free Flat-lock Seams
1/4 Zip Pullover
Antibacterial & Anti-Static
4 Selectable Heat Settings
Bluetooth 4.0 Wireless Control
MW Connect Mobile App Compatible
Integrated Touch Control Button
2x Back Heat Element
Powerful Rechargeable Lithium-Ion Battery
Up to 10 Hours of Heat Per Charge
Battery Rating: 7.4v, 2200mAh
Charge Time: 3.5 hours

(1) Ion heated Shirt
(1) 7.4-volt 2200mAh Lithium-Ion Battery
(1) Micro USB Cable


About Mobile Warming
Mobile Warming products are designed with the outdoors in mind; the range of applications is wide-spread including skiing, hunting, hiking, fishing, motorcycling, golf...even work. Breakthrough technology provides outstanding levels of comfort and warmth for an entire day at the touch of a button; exceeding the efficiency of any other warming system available in outerwear today. Mobile Warming is committed to continuing to provide customers with the best quality, best priced, and best performing heated products on the market.

STAY WARM, STAY COMFORTABLE Industry Leading Heat Performance

Patented Mobile Warming technology is specially engineered for cold environmental conditions. Mobile Warming comprehensive heating solutions keep you warm and comfortable. The exclusive Mobile Warming heating system utilizes F.I.R. (Far-Infrared) heat and ultra-fine metal fiber heating elements powered by lightweight, rechargeable, and powerful Lithium-Ion batteries. As heat builds Mobile Warming advanced materials reflect and direct heat back towards the body ensuring that you stay warm. The combination of unique materials, construction techniques, and innovative design results in the most advanced heated gear available.

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