Klein Flame-Resistant Heated Base Layer Vest

Klein Tools Flame-Resistant Heated Vest is constructed from ASTM F1506-compliant flame-resistant materials and designed to be worn as a lightweight base layer beneath outerwear. Four integrated heating panels on the left chest, right chest, upper back, and lower back distribute heat across key core areas for consistent warmth in cold-weather conditions. Three adjustable heat settings deliver up to 12 hours of runtime on low, 6 hours on medium, and 4 hours on high.
Features:

Made of ASTM F1506-compliant flame-resistant materials, ensuring jobsite FR PPE requirements while maintaining compliance in utility and electrical work environments
Heating panels on the left chest, right chest, upper back, and lower back deliver heat across key core areas during cold-weather utility applications
Three heat settings ranging from low to high deliver runtime of up to 12 hours on low, 6 hours on medium, and 4 hours on high for adaptable cold-weather performance
Dual-battery system includes two rechargeable lithium-ion batteries, allowing one to power the vest while the second serves as a backup for extended all-day runtime on the job
Durable waterproof softshell exterior withstands demanding field conditions while maintaining a lightweight, low-profile fit beneath outerwear
Oversized zipper pulls support use with Class 2 gloves, and an adjustable waist cinch helps retain heat throughout the workday
Three storage pockets provide convenient on-body storage for tools, accessories, and personal items during cold-weather utility applications

Specifications:

Type: Heated Base Layer Vest
Special Features: Heat Panels
Size: Large
Chest Size: Large 41" to 44", X-Large 45" to 48", 2XL 49" to 50"
Color: Black
Closure Type: Zipper
Standards: ASTM F1506; Arc: 11 cal/cm²
Number of Pockets: 4
Interior Pockets: 1
Exterior Pockets: 3
Battery Type: Lithium-Ion
Battery Life: High: 4 hr; Medium: 6 hr; Low: 12 hr
Fabric Construction: Shell Material: 8.8 oz/yd², 300 g/m² FR & Antistatic PU Multilayer Trilaminate, Face: 98% Polyester, 2% Antistatic Carbon; Mid: Flame retardant PU coating; Back: 60% Modacrylic, 40% Cotton, Black. Liner Material: 7.0 oz/yd², 237 g/m² Interlock, 100% FR Cotton, Gray.
Machine Washable: Yes
Weight: Large 3.17 lbs (1.4 kg), X-Large 3.2 lbs (1.45 kg), 2XL 3.4 lbs (1.55 kg)
UPC: Large 092644612510, X-Large 092644612527, 2XL 092644612534

Includes:

(1) Vest
(2) Batteries
(2) USB-A to USB-C Charging Cables