Which heating zones are built into this base layer?

The heating zones are located on the chest and back.

Which battery and charger are included?

It comes supplied with 1 L4 B3 Redlithium USB battery, a USB cable, and a wall plug.

How many heat settings does the Milwaukee L4 HBLB-301S offer?

It offers 2 heat settings controlled by a one-touch LED controller.

What is the battery runtime on a single charge?

On the low heat setting, the L4 B3 battery provides up to 180 minutes of continuous heat.

Is this heated shirt machine washable?

Yes, it is washer and dryer safe once you remove the battery.

MILWAUKEE L4 HBLB-301 USB rechargeable heated workskin base layer black - 4933478081 MILWAUKEE 4933478081

Name: MILWAUKEE L4 HBLB-301 USB rechargeable heated workskin base layer black - 4933478081
Brand: MILWAUKEE
SKU: 166052
Price: 171.98 EUR
Availability: PreOrder

Supplier number: MILWAUKEE 4933478081 | EAN 4058546340148

Recommended Retail Price €194.61

171.98 tax incl.

€142.14 excl. VAT (incl. all environmental contributions)

Clothing size *

Stock is shown per size

S On backorder M On backorder L On backorder XL On backorder XXL On backorder

In stock On backorder Unavailable

On order: delivered from 20/10/2026

Delivery by DHL

✆ Talk to a specialist

How does it work?

Buy Milwaukee products with a total order value of at least €250 excl. VAT.
For a total order value of €250 excl. VAT up to but excluding €500 excl. VAT, you receive a FREE Milwaukee 12-piece Tri-Lobe screwdriver set (4932472003) worth €55.90.
For a total order value of €500 excl. VAT up to but excluding €750 excl. VAT, you receive a FREE Milwaukee M18 125 mm Random Orbital Sander cordless random orbital sander (4933464228) worth €168.90.
For a total order value of €750 excl. VAT or more, you receive a FREE Milwaukee M18 FUEL 125 mm cordless angle grinder with slide switch and brake (4933498062) worth €357.90.
The free item is automatically added to your order. No registration is required.
This promotion cannot be combined with the ongoing Milwaukee Cashback Promotion on Milwaukee hand tools. An invoice for which you receive a free Buy More, Get More gift therefore cannot also be submitted for the Milwaukee hand tools cashback promotion.
The promotion is valid from 01.10.2026 to 31.10.2026.
Milwaukee Buy More, Get More deals are recognisable by the promotion label on the product page. Click the label to view all available deals.

Targeted warmth with Milwaukee

Practical benefits

Targeted heat for torso: Heating zones distribute warmth across your chest and back to keep your core dry and warm.
Fast and simple control: You select between two heat settings with the touch controller and reach full temperature within 2.5 minutes.
Unrestricted freedom of movement: Raglan sleeves and seamless shoulders ensure you move naturally and layer comfortably under regular workwear.

In a nutshell

The right choise for

With the Milwaukee L4 HBLB-301S heated Workskin base layer, you stay warm and focused during cold outdoor jobs or unheated warehouse work without wearing bulky extra layers. Built-in heating zones deliver warmth straight to your chest and back, reaching full temperature in just 2.5 minutes. Using the one-touch led controller, you easily switch between two heat settings, offering up to 180 minutes of continuous warmth on the low setting. Raglan sleeves and seamless shoulders ensure unrestricted mobility under standard workwear. Supplied in size s with an L4 B3 Redlithium usb battery, charging cable, and wall plug, this base layer is washer and dryer safe once the battery is removed.

Product information FAQ

€171.98

tax incl.

Key features according to our expert

Supplied as standard

1 x L4 B3 Battery pack
USB cable and wall plug
No kitbox or bag supplied

Product description

Mid-weight construction out of durable, pilling resistant material, keeps body warm and dry
Fully heats-up in 2.5 min
Heat is created and distributed to the chest and back
Powered by L4 USB rechargeable REDLITHIUM battery pack
A one-touch LED controller allows the user to select from 2 heat settings, delivering ideal heat for any environment
Durable, pilling resistant material with raglan designed sleeves and seamless shoulders for improved mobility and comfort
Superior run time - Up to 180 min of heat on low level
L4 battery holder - concealed battery pocket for minimal user interference
Machine washable

All Features

Colour: Black
Size: S
Number of batteries supplied: 1
Voltage (v): 4
Battery type: Li-ion
Material: 100% Polyester
Weight (kg): 0.5

Brand MILWAUKEE
03167570
EAN 4058546340148
Supplier number MILWAUKEE 4933478081

Frequently asked questions about this product

Answered by specialists

Which heating zones are built into this base layer?: The heating zones are located on the chest and back.
Which battery and charger are included?: It comes supplied with 1 L4 B3 Redlithium USB battery, a USB cable, and a wall plug.
How many heat settings does the Milwaukee L4 HBLB-301S offer?: It offers 2 heat settings controlled by a one-touch LED controller.
What is the battery runtime on a single charge?: On the low heat setting, the L4 B3 battery provides up to 180 minutes of continuous heat.
Is this heated shirt machine washable?: Yes, it is washer and dryer safe once you remove the battery.