The Fieldsheer powered by Mobile Warming Technology Bluetooth®-enabled Primer heated men's base layer shirt is designed for the outdoor enthusiast. Its moisture-wicking, warmth, and stretch features make it a versatile baselayer in the winter, or a standalone heated shirt during outdoor activities in the Spring and Fall. The Primer is made from a four-way stretch anti-odor 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.

FEATURES:

• Stretch Polyester Fabric
• 88% Polyester, 12% Spandex
• Moisture Wicking Mesh Liner
• Chafe-free Flat-Lock Seams
• Mesh Sides
• Anti-Odor
• Anti-Static
• 4 Selectable Heat Settings
• Bluetooth® 4.0 Wireless Control
• Integrated Touch Control Button
• Tri-Zone Heat Elements
• Powerful Rechargeable Lithium-Ion Battery
• Up to 10 Hours of Heat Per Charge
• Battery Rating: 7.4v, 2200mAh
• Charge Time: 3.5hrs