Quick Summary
Under Armour Boys ColdGear Armour Leggings are youth base layer leggings for boys. They are described as lightweight warm leggings with a dual-layer fabric build, 4-way stretch and a streamlined fit. The stated inseam for YMD is 25 in, with a tolerance of +/- 1.5 in per size.
They are intended as thermal underwear or a base layer for cooler conditions, and the fabric is stated as 87% polyester and 13% elastane.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Under Armour, so the product is clearly positioned within that brand range. |
| Product type | Boys’ thermal leggings / youth base layer leggings, which places it in a close-fitting lower-body layer. |
| Fit | Streamlined fit that is described as neither too tight nor too loose. |
| Inseam | YMD is 25 in, with +/- 1.5 in per size. Check this against the child’s leg length and size choice. |
| Material | 87% polyester and 13% elastane. |
| Fabric construction | Dual-layer fabric with a brushed inside and smooth, fast-drying exterior. |
| Stretch | 4-way stretch fabric, which supports movement within the stated fit. |
What to Compare Before Buying
- Size: The inseam is stated for YMD, so compare the chosen size carefully against the wearer’s leg length.
- Fit: These leggings are streamlined rather than loose. Check whether a close base layer fit is what you want.
- Fabric feel: The inside is brushed and the outside is smooth. Compare that feel with what the wearer prefers under sportswear or clothing.
- Layering use: They are described as thermal underwear and a base layer, so compare whether you need a lower-layer garment rather than outerwear.
Before You Decide
Confirm the selected youth size, especially the inseam, before choosing an offer. Also check that you want a streamlined base layer rather than a looser trouser style, and review the fabric blend if the feel of the garment matters for your use.





