Independent buyers guides and product information
UK edition · GBP

L S U Boys Girls Thermal Base Layer Set, Black, 3-5 Years

£8.99 (as of 27/10/2026 22:55 GMT - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

The L S U Boys Girls Thermal Base Layer Set is a black unisex winter underwear set for 3-5 years, with a full sleeve top and trouser leggings. It is designed as a matching base layer to wear under other clothing in colder weather, so size and set format are the main checks before buying.

SKU: B0FSLKY6MY Category:

As an Amazon Associate we earn from qualifying purchases.

Not sure yet?Children’s Base Layer Sets Buyer GuideRead what to compare before you choose

Compare with similar Children's Base Layer Sets

Price drop −40%Ruisita Kids Boys Thermal Underwear Set Navy Original price was: £14.99.Current price is: £8.99. (as of 29/10/2026 20:59 GMT - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)View on Amazon
Price drop −28%Stolpyzh Kids Thermal Base Layer Set, Black, Ages 4-5 / Size 22 Original price was: £13.99.Current price is: £9.97. (as of 03/11/2026 10:50 GMT - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)View on Amazon

As an Amazon Associate we earn from qualifying purchases.

Quick Summary

The L S U Boys Girls Thermal Base Layer Set is a black unisex winter underwear set for 3-5 years. It includes a full sleeve top and bottom trouser leggings as a matching base layer for colder weather.

The set is described as a thermal layer with heat-retaining and moisture-wicking qualities. It is aimed at wearing underneath other clothing as an extra layer in winter.

Key Details

Detail Verified information and buyer relevance
Product type Thermal base layer set with top and bottom pieces.
Brand / name L S U.
Variant Black set for 3-5 years.
Fit Unisex design for boys and girls.
Top Full sleeve top.
Bottom Trouser leggings.

What to Compare Before Buying

  • Size: This version is for 3-5 years, so check the child’s current measurements and preferred fit.
  • Colour: This set is black, which matters if you want a different colour for school or sports wear.
  • Layer use: It is intended as a base layer, so compare it with the clothing it will sit under.
  • Set format: Confirm you want a matching top and bottom rather than a single garment.

Before You Decide

Confirm the 3-5 years size, the black colour and the top-and-bottom set format before choosing an offer. If you want a winter base layer for children, check that the fit and garment style suit the clothes it will be worn under.

Fit Under Other Clothing

When choosing a size, compare the child’s measurements with the size guidance for this exact set. Consider the clothes it will be worn beneath as well: trying the layers together can help check that the outfit allows comfortable movement and does not feel overly bulky.

Brand

L S U

Manufacturer

L S U

Product Group

Apparel

Model

Thermal Set

Color

Black Set Only

Size

3-5 Years

Number Of Items

2

Scroll to Top