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Women’s Thermal Underwear

When it’s cold outside, our women’s thermals will trap heat and keep you cosy. Clever Heatgen Plus™ technology is used to keep fabrics warm and lightweight. You can also find pieces with extra stretch to ensure a close and comfortable fit.

  • Size with 17 options
  • Product Type with 8 options
  • Heat Rating with 3 options
  • Multipack with 3 options

There are 74 Items found

  • Heatgen™ Light Thermal Polo Body image 1
  • Heatgen™ Light Thermal Polo Body image 2
  • Heatgen™ Light Thermal Polo Body image 3
  • Heatgen™ Light Thermal Polo Body image 4
  • Heatgen™ Light Thermal Polo Body image 5
  • Heatgen™ Light Thermal Polo Body image 6
  • Heatgen™ Light Thermal Polo Body image 7
£16
M&S Collection

Heatgen™ Light Thermal Polo Body

Everyday warmth

  • 2pk Pointelle Thermal Long Sleeve Tops image 1
  • 2pk Pointelle Thermal Long Sleeve Tops image 2
  • 2pk Pointelle Thermal Long Sleeve Tops image 3
  • 2pk Pointelle Thermal Long Sleeve Tops image 4
  • 2pk Pointelle Thermal Long Sleeve Tops image 5
  • 2pk Pointelle Thermal Long Sleeve Tops image 6
  • 2pk Pointelle Thermal Long Sleeve Tops image 7
£25
M&S Collection

2pk Pointelle Thermal Long Sleeve Tops

Extra warmth

  • 2pk Heatgen™ Thermal Light Leggings image 1
  • 2pk Heatgen™ Thermal Light Leggings image 2
  • 2pk Heatgen™ Thermal Light Leggings image 3
  • 2pk Heatgen™ Thermal Light Leggings image 4
  • 2pk Heatgen™ Thermal Light Leggings image 5
  • 2pk Heatgen™ Thermal Light Leggings image 6
  • 2pk Heatgen™ Thermal Light Leggings image 7
£25
M&S Collection

2pk Heatgen™ Thermal Light Leggings

Everyday warmth

  • Heatgen Medium™ Thermal Long Sleeve Hoodie image 1
  • Heatgen Medium™ Thermal Long Sleeve Hoodie image 2
  • Heatgen Medium™ Thermal Long Sleeve Hoodie image 3
  • Heatgen Medium™ Thermal Long Sleeve Hoodie image 4
  • Heatgen Medium™ Thermal Long Sleeve Hoodie image 5
  • Heatgen Medium™ Thermal Long Sleeve Hoodie image 6
  • Heatgen Medium™ Thermal Long Sleeve Hoodie image 7
£25
M&S Collection

Heatgen Medium™ Thermal Long Sleeve Hoodie

  • Heatgen™ Medium Thermal Long Sleeve Top image 1
  • Heatgen™ Medium Thermal Long Sleeve Top image 2
  • Heatgen™ Medium Thermal Long Sleeve Top image 3
  • Heatgen™ Medium Thermal Long Sleeve Top image 4
  • Heatgen™ Medium Thermal Long Sleeve Top image 5
  • Heatgen™ Medium Thermal Long Sleeve Top image 6
  • Heatgen™ Medium Thermal Long Sleeve Top image 7
£15 - £16
M&S Collection

Heatgen™ Medium Thermal Long Sleeve Top

Extra warmth

  • 3pk Thermal Sumptuously Soft™ Ankle High Socks image 1
  • 3pk Thermal Sumptuously Soft™ Ankle High Socks image 2
  • 3pk Thermal Sumptuously Soft™ Ankle High Socks image 3
  • 3pk Thermal Sumptuously Soft™ Ankle High Socks image 4
£10
M&S Collection

3pk Thermal Sumptuously Soft™ Ankle High Socks

Extra warmth

  • 2pk Heatgen™ Thermal Light Long Sleeve Tops image 1
  • 2pk Heatgen™ Thermal Light Long Sleeve Tops image 2
  • 2pk Heatgen™ Thermal Light Long Sleeve Tops image 3
  • 2pk Heatgen™ Thermal Light Long Sleeve Tops image 4
  • 2pk Heatgen™ Thermal Light Long Sleeve Tops image 5
  • 2pk Heatgen™ Thermal Light Long Sleeve Tops image 6
  • 2pk Heatgen™ Thermal Light Long Sleeve Tops image 7
£25
M&S Collection

2pk Heatgen™ Thermal Light Long Sleeve Tops

  • 2pk Heatgen™ Light Thermal Polo Neck Tops image 1
  • 2pk Heatgen™ Light Thermal Polo Neck Tops image 2
  • 2pk Heatgen™ Light Thermal Polo Neck Tops image 3
  • 2pk Heatgen™ Light Thermal Polo Neck Tops image 4
  • 2pk Heatgen™ Light Thermal Polo Neck Tops image 5
  • 2pk Heatgen™ Light Thermal Polo Neck Tops image 6
  • 2pk Heatgen™ Light Thermal Polo Neck Tops image 7
£25
M&S Collection

2pk Heatgen™ Light Thermal Polo Neck Tops

Everyday warmth

  • Heatgen™ Medium Fleece Thermal Top image 1
  • Heatgen™ Medium Fleece Thermal Top image 2
  • Heatgen™ Medium Fleece Thermal Top image 3
  • Heatgen™ Medium Fleece Thermal Top image 4
  • Heatgen™ Medium Fleece Thermal Top image 5
  • Heatgen™ Medium Fleece Thermal Top image 6
  • Heatgen™ Medium Fleece Thermal Top image 7
  • Heatgen™ Medium Fleece Thermal Top image 8
£16
M&S Collection

Heatgen™ Medium Fleece Thermal Top

Extra warmth

  • 2pk Thermal Knee High Socks image 1
  • 2pk Thermal Knee High Socks image 2
  • 2pk Thermal Knee High Socks image 3
  • 2pk Thermal Knee High Socks image 4
£10
M&S Collection

2pk Thermal Knee High Socks

Extra warmth

Your secret to staying warm

Tell me more
Content card Your secret to staying warm 17th October 2023
  • 2pk Heatgen™ Light Thermal Long Sleeve Tops image 1
  • 2pk Heatgen™ Light Thermal Long Sleeve Tops image 2
  • 2pk Heatgen™ Light Thermal Long Sleeve Tops image 3
  • 2pk Heatgen™ Light Thermal Long Sleeve Tops image 4
  • 2pk Heatgen™ Light Thermal Long Sleeve Tops image 5
  • 2pk Heatgen™ Light Thermal Long Sleeve Tops image 6
  • 2pk Heatgen™ Light Thermal Long Sleeve Tops image 7
£25
M&S Collection

2pk Heatgen™ Light Thermal Long Sleeve Tops

  • Heatgen™ Medium Thermal Brushed Leggings image 1
  • Heatgen™ Medium Thermal Brushed Leggings image 2
£16
M&S Collection

Heatgen™ Medium Thermal Brushed Leggings

Extra warmth

  • Heatgen™ Medium Thermal Strappy Vest image 1
  • Heatgen™ Medium Thermal Strappy Vest image 2
  • Heatgen™ Medium Thermal Strappy Vest image 3
  • Heatgen™ Medium Thermal Strappy Vest image 4
  • Heatgen™ Medium Thermal Strappy Vest image 5
  • Heatgen™ Medium Thermal Strappy Vest image 6
  • Heatgen™ Medium Thermal Strappy Vest image 7
  • Heatgen™ Medium Thermal Strappy Vest image 8
£10
M&S Collection

Heatgen™ Medium Thermal Strappy Vest

  • 2pk Thermal Pointelle Vests image 1
  • 2pk Thermal Pointelle Vests image 2
£15
M&S Collection

2pk Thermal Pointelle Vests

Extra warmth

  • 3pk Sumptuously Soft™ Thermal Socks image 1
  • 3pk Sumptuously Soft™ Thermal Socks image 2
  • 3pk Sumptuously Soft™ Thermal Socks image 3
£10
M&S Collection

3pk Sumptuously Soft™ Thermal Socks

Extra warmth

  • 2pk Heavyweight Thermal Boot Socks image 1
  • 2pk Heavyweight Thermal Boot Socks image 2
  • 2pk Heavyweight Thermal Boot Socks image 3
£10
M&S Collection

2pk Heavyweight Thermal Boot Socks

Maximum warmth

  • 2pk Max Warmth Thermal Knee Highs with Wool and Silk image 1
  • 2pk Max Warmth Thermal Knee Highs with Wool and Silk image 2
  • 2pk Max Warmth Thermal Knee Highs with Wool and Silk image 3
£12
M&S Collection

2pk Max Warmth Thermal Knee Highs with Wool and Silk

  • Heatgen™ Medium Thermal Fleece Joggers image 1
  • Heatgen™ Medium Thermal Fleece Joggers image 2
  • Heatgen™ Medium Thermal Fleece Joggers image 3
  • Heatgen™ Medium Thermal Fleece Joggers image 4
  • Heatgen™ Medium Thermal Fleece Joggers image 5
  • Heatgen™ Medium Thermal Fleece Joggers image 6
  • Heatgen™ Medium Thermal Fleece Joggers image 7
£25
M&S Collection

Heatgen™ Medium Thermal Fleece Joggers

  • Heatgen™ Medium Thermal Striped Top image 1
  • Heatgen™ Medium Thermal Striped Top image 2
  • Heatgen™ Medium Thermal Striped Top image 3
  • Heatgen™ Medium Thermal Striped Top image 4
  • Heatgen™ Medium Thermal Striped Top image 5
  • Heatgen™ Medium Thermal Striped Top image 6
  • Heatgen™ Medium Thermal Striped Top image 7
  • Heatgen™ Medium Thermal Striped Top image 8
£16
M&S Collection

Heatgen™ Medium Thermal Striped Top

  • 100 Denier Thermal Heatgen™ Opaque Tights image 1
  • 100 Denier Thermal Heatgen™ Opaque Tights image 2
£10
M&S Collection

100 Denier Thermal Heatgen™ Opaque Tights

Everyday warmth

  • 250 Denier Velour Lined Footless Tights image 1
  • 250 Denier Velour Lined Footless Tights image 2
  • 250 Denier Velour Lined Footless Tights image 3
£8
M&S Collection

250 Denier Velour Lined Footless Tights

Maximum warmth

Earn vouchers as you shop with the M&S Credit Card Shopping Plus Offer

M&S plc acts as a credit broker and not a lender. Credit is subject to status.

Find out more
Content card Credit Card test 03/01/2024
  • Thermal Leg/Arm Warmers image 1
  • Thermal Leg/Arm Warmers image 2
  • Thermal Leg/Arm Warmers image 3
£8
M&S Collection

Thermal Leg/Arm Warmers

  • 250 Denier Velour Lined Tights image 1
  • 250 Denier Velour Lined Tights image 2
  • 250 Denier Velour Lined Tights image 3
£8
M&S Collection

250 Denier Velour Lined Tights

Maximum warmth

  • 3pk Sumptuously Soft™ Thermal Socks image 1
  • 3pk Sumptuously Soft™ Thermal Socks image 2
  • 3pk Sumptuously Soft™ Thermal Socks image 3
  • 3pk Sumptuously Soft™ Thermal Socks image 4
£10
M&S Collection

3pk Sumptuously Soft™ Thermal Socks

Extra warmth

  • 2pk Striped Max Warmth Thermal Boot Socks image 1
  • 2pk Striped Max Warmth Thermal Boot Socks image 2
  • 2pk Striped Max Warmth Thermal Boot Socks image 3
£8
M&S Collection

2pk Striped Max Warmth Thermal Boot Socks

  • Heatgen™ Medium Short Sleeve Thermal Top image 1
  • Heatgen™ Medium Short Sleeve Thermal Top image 2
  • Heatgen™ Medium Short Sleeve Thermal Top image 3
  • Heatgen™ Medium Short Sleeve Thermal Top image 4
  • Heatgen™ Medium Short Sleeve Thermal Top image 5
  • Heatgen™ Medium Short Sleeve Thermal Top image 6
  • Heatgen™ Medium Short Sleeve Thermal Top image 7
£14
M&S Collection

Heatgen™ Medium Short Sleeve Thermal Top

  • Heatgen™ Medium Thermal Long Sleeve Sparkle Top image 1
  • Heatgen™ Medium Thermal Long Sleeve Sparkle Top image 2
  • Heatgen™ Medium Thermal Long Sleeve Sparkle Top image 3
  • Heatgen™ Medium Thermal Long Sleeve Sparkle Top image 4
  • Heatgen™ Medium Thermal Long Sleeve Sparkle Top image 5
  • Heatgen™ Medium Thermal Long Sleeve Sparkle Top image 6
  • Heatgen™ Medium Thermal Long Sleeve Sparkle Top image 7
£16
M&S Collection

Heatgen™ Medium Thermal Long Sleeve Sparkle Top

Extra warmth

  • 2pk Thermal Medium Warmth Cotton Knee High Socks image 1
  • 2pk Thermal Medium Warmth Cotton Knee High Socks image 2
  • 2pk Thermal Medium Warmth Cotton Knee High Socks image 3
£8
M&S Collection

2pk Thermal Medium Warmth Cotton Knee High Socks

  • Heatgen™ Medium Thermal All-in-one image 1
  • Heatgen™ Medium Thermal All-in-one image 2
  • Heatgen™ Medium Thermal All-in-one image 3
  • Heatgen™ Medium Thermal All-in-one image 4
  • Heatgen™ Medium Thermal All-in-one image 5
  • Heatgen™ Medium Thermal All-in-one image 6
£32
M&S Collection

Heatgen™ Medium Thermal All-in-one

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