This versatile black thermal set is the ultimate layering piece and clever hack for staying warm

This £18 versatile black thermal set is the ultimate layering piece and a clever hack for staying warm this winter – and it’s currently 25% off


Products featured in this Mail Best article are independently selected by our shopping writers. If you make a purchase using links on this page, MailOnline may earn an affiliate commission. 

If you want to add warmth to your outfit without adding bulk, then a thin, soft and stretchy thermal set is a clever layering tip that could make all the difference. 

Designed with heat-trapping tech and a super soft fleece lining, the SIMIYA Women Thermal Underwear Set is a savvy winter buy, especially as it’s now currently on sale. 

The number one bestseller in Thermal Sets on Amazon is just £17.99, reduced from £23.99 – a saving of £6 off the RRP. Described as ‘super cosy and warm’ and ‘incredibly comfortable’, shoppers have been won over by the affordable price and impressive quality. 

The SIMIYA Women Thermal Underwear Set Base is ideal for keeping you warm without the bulk this winter and is now on sale for £17.99 

The SIMIYA Women Thermal Underwear Set is a brilliant way to wear your favourite outfits without sacrificing your style or subjecting yourself to the freezing cold. 

The fleece-lined thermal set not only provides cosy warmth but is almost impossible to detect underneath your outfit. 

Fitting snug like a second skin, it minimises heat loss yet remains lightweight, so you don’t have to deal with added bulk. 

The SIMIYA Women Thermal Underwear Set is made of 95 per cent Polyester and a five per cent Spandex blend for fabric that’s super soft to touch. 

Smooth on the outside with a micro-fibre fleece-lined inside, the underwear set reduces friction against your skin and wicks away sweat fast to keep you dry and free from that clammy feeling.

Another huge draw is the multiple flat seams and tag-free design. Sitting seamlessly against your body, the set won’t chafe underneath your clothes, and you won’t have to deal with any annoying itching or scratching.

Shoppers have reported that whilst stylish enough to wear on their own, the thermal set is great for layering, with one shopper raving: ‘Love this, really soft material inside so very comfy to wear – fits under jumper and jeans so keeps me very warm and fitted perfectly- really happy.’

Thin enough to sit comfortably under clothes, the thermal set traps in heat, keeping you cosy, while the four-way stretch ensures you have free movement when out and about

Thin enough to sit comfortably under clothes, the thermal set traps in heat, keeping you cosy, while the four-way stretch ensures you have free movement when out and about 

Another delighted shopper left a glowing review for the SIMIYA Women Thermal Underwear Set, writing: ‘Super cosy and warm. This is by far the warmest thermal set I have used. It is super cosy and very warm. I will be using it also as leggings during cold morning walks. Worth it.’

A third penned: ‘These are so cosy and warm. I can’t wait to get them on on a cold morning. I also wear them around the house as they are very comfortable and I feel the cold terribly. Super soft fleecy lining is perfect. 

‘I’m hoping to find them in another colour as would like to buy at least one more set.’

Breathable, tagless and designed with a four-way stretch to keep you comfortable when on the move, this versatile thermal set is a popular Amazon buy for a reason.