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Lifestylemom Great quality and soft thermals I sized up , I got a size 4-5 for my soon to be 3 year old. He wears it under his jumpers to keep him cosy in nursery and outdoors

StewK Do the job Lovely and soft, so the job. Would buy again when needed

SRS Great product The kids love it. Very warm and comfortable. Good size.

LarryLizard Thermal vest. Good and very warm and comfortable. However, I wanted black and the only packs were a mix of two colours, one black and one stone colour.

JaneVane pricey nice and keep well, but they are really expensive.

Kadyn Warm Bought the blue set for my son to wear when no in school uniform. They seem fine.

Mum1272 Perfect Fits perfectly, just what was required for when my child does PR in the winter months.

M and S Purchase Great Product Great product. Great fit. Nice and warm. Would recommend

Pamhe Warm and nice touch Good quality and comfortable, my son loves to wear them

Iddle Warm and cosy fit me a 79 year old ! This are warm and cosy and kept out the bitter cold (with easterly gale) from going through me when I was out and about. Yet very comfortable without being sweaty at all when I attended my Scottish Dancing Class. Also washed well when I was doing a 30 deg. Wash

  • 2pk Heatgen™ Thermal Vests (2-14 Yrs) 1 of 1
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2pk Heatgen™ Thermal Vests (2-14 Yrs) 1 of 1

£12.00 - £13.00

M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

Product code: T710215T

£12.00 - £13.00

Also available in: Leggings


Choose a size
Free standard delivery on orders over £60
Interest-free payments available on orders between £30.00 - £2000.00 with PayPal

Maximise their layers this winter with these insulating thermal tops, made from breathable cotton-blend fabric. These long-sleeved styles have a soft brushed fabric that retains warmth for an incredibly cosy feel. Made with responsibly sourced viscose. We only ever use responsibly sourced cotton for our clothes.

Details & care


Product Style: Thermals

Long sleeve

Keep Away From Fire


Better Cotton Initiative

M&S is proud to invest in making cotton production more responsible. Better Cotton is sourced through a system of Mass Balance. Find out more


soft and cosy brushed fabric that keeps warmth in


50% cotton, 25% viscose and 25% polyester (exclusive of trimmings), Ribbing - 49% cotton, 24% polyester, 24% viscose and 3% elastane


Wash at 40°C

Do not bleach

Tumble dry medium temperature

Iron at medium temperature

Do not dry clean

Delivery, collection & returns



Free over £60, or £3.99

Nominated Day

£5.99. Order by 8pm for delivery tomorrow


Collect from store

Order before 10pm for free next-day in-store collection


UK returns


Exclusions apply

Full delivery and collection information



2 stars