9.2 / 10.0

Milwaukee M100B-21M M12 12V Durable Li-Ion Heated TOUGHSHELL Jacket Review

Published October 20, 2025 • 8 min read • 3 views

Overview

The Milwaukee M100B-21M M12 12V heated jacket is a high-quality, durable garment designed specifically for professionals who require warmth and mobility on job sites. It features HEXON HEAT TECHNOLOGY to provide quick heating and extended warmth in cold environments.

What's In The Box

  • Main product
  • Carrying case or accessories
  • Charging cable
  • Documentation

Technical Specifications

Battery Type 12V Lithium-Ion
Heating Technology HEXON HEAT TECHNOLOGY™
Temperature Control Adjustable heat settings via app control
Material TOUGHSHELL Water-resistant fabric
Size Men's Medium
Weight Approx. 1 lb

Design & Build Quality

The jacket is constructed with TOUGHSHELL material, which provides excellent durability and water resistance, making it ideal for harsh job site conditions. The design incorporates multiple pockets and reflective strips for increased visibility and convenience.

Performance

In real-world use, the M100B-21M jacket excels in providing consistent warmth despite prolonged exposure to cold weather. It heats up quickly after being turned on and maintains this temperature efficiently even when working vigorously.

Key Feature Analysis

The HEXON HEAT TECHNOLOGY is a standout feature, offering rapid heat generation and long-lasting warmth compared to similar products. However, the reliance on smartphone app control can be cumbersome for those without constant access to their device.

Durability

With its robust construction materials and design, this jacket is built to withstand tough environments. The battery life is also commendable, ensuring the wearer stays warm throughout a full workday without needing frequent recharges.

Pros & Cons

Pros

  • Excellent heat retention
  • Rapid heating capacity
  • Water-resistant TOUGHSHELL material
  • Multiple adjustable heat settings via app control
  • Comes with carrying case and charging cable

Cons

  • Requires regular battery recharging, which can be inconvenient
  • App control might not work in all environments
  • Limited size options may restrict availability for certain body types
  • Higher price point compared to non-heated alternatives

Final Verdict

The Milwaukee M100B-21M offers superior warmth and comfort for professionals working in cold conditions, with durable construction and advanced heating technology. However, it may not be ideal for those requiring a lower cost solution or who need constant access to their smartphone.

Who should buy: Ideal for outdoor workers and DIY enthusiasts needing reliable heated gear during winter months.

Who should skip: Not recommended if you have limited budget for workwear or prefer non-electric solutions.

9.2/10
Milwaukee M100B-21M M12 12V Durable Li-Ion Heated TOUGHSHELL Jacket Review

Where To Buy

$229.99

Milwaukee M100B-21M M12 12V Durable Li-Ion Heated TOUGHSHELL Jacket

Prices may vary

Ready to Buy?

$229.99

Prices may vary by retailer and configuration