# HeatGear

- **Brand:** Under Armour
- **Price:** $35.00
- **Catalog:** underarmour
- **Retailer:** underarmour
- **Product URL:** https://go.cosimo.shop/r/gAAAAABqzEZsnNiPNukXnWgIb4N6qZJGDY0N4vbNJ3c1PWWUFIIK8dbqjG97Ele3T-YySJ75PXOJBvgG-pbeq2-rMsdyn-B0HwEExCf8AtjIBOmb4s13bgV7SR8yi8H_Q-31LL3F7BYVaUyoFK0YrQJaAq8tER9y-YKhrADlUSY_nWhCvhEGOA87P-q2AZpg3bZPtjMDMIQXqAQRrqjN-9F6yWnUrYjPIXjDhsLMVwDIC9bAiIFKF6Bg0XLh1-_ZBJ1pFCP0XwhXsqlbYFVUoigdfIDWdn_QkMzPKOW3PldfNHdVZ1STHn3uX_tQqOo9n-gq6PacXt2QdAdLmdW1P1wsjGgUEpsfB-84HuX7Of2rcAM3h4WJv7jjHWuiywWBga_V9dTtzD_9K2eosCdermY6JFdcHRsD8gO31Cq8lsIdgK1yqL-uvKuNfXyceUC7pOg_9RTI7OnjueQ7o_HghGJiQX03n5qFIA==
- **GTIN:** 195252014810
- **Availability:** In stock

## Summary

Boys' white mock neck long sleeve baselayer made from a polyester-elastane blend, designed for moisture-wicking and heat management during training.

## Description

This HeatGear® mock neck long sleeve baselayer is built for boys training and competing in the heat. Super-light HeatGear® fabric provides full arm and neck coverage without added weight, and wicks sweat and dries fast under football and lacrosse pads. Doubles as a standalone training top or a baselayer under pads or a jersey. Designed to provide coverage in the heat, not warmth in cold weather.

## Appearance

- **Colors:** White / Black - 100 (Out of Stock), Black / White - 001 (Out of Stock), White / Black - 100
- **Sizes:** YXS, YSM, YMD, YLG, YXL (per-size availability under Variants)
- **Materials:** 90% Polyester/10% Elastane
- **Fit:** Tight: Snug, no squeeze

## Variants

- **In stock:** 15 of 15
- **Available:** White / Black - 100 (Out of Stock) / YXS, White / Black - 100 (Out of Stock) / YSM, White / Black - 100 (Out of Stock) / YMD, White / Black - 100 (Out of Stock) / YLG, White / Black - 100 (Out of Stock) / YXL, Black / White - 001 (Out of Stock) / YXS, Black / White - 001 (Out of Stock) / YSM, Black / White - 001 (Out of Stock) / YMD, Black / White - 001 (Out of Stock) / YLG, Black / White - 001 (Out of Stock) / YXL, White / Black - 100 / YXS, White / Black - 100 / YSM, White / Black - 100 / YMD, White / Black - 100 / YLG, White / Black - 100 / YXL

| Size | Color | SKU | Availability |
| --- | --- | --- | --- |
| YXS | White / Black - 100 (Out of Stock) | 1369477-100-YXS | In stock |
| YSM | White / Black - 100 (Out of Stock) | 1369477-100-YSM | In stock |
| YMD | White / Black - 100 (Out of Stock) | 1369477-100-YMD | In stock |
| YLG | White / Black - 100 (Out of Stock) | 1369477-100-YLG | In stock |
| YXL | White / Black - 100 (Out of Stock) | 1369477-100-YXL | In stock |
| YXS | Black / White - 001 (Out of Stock) | 1369477-001-YXS | In stock |
| YSM | Black / White - 001 (Out of Stock) | 1369477-001-YSM | In stock |
| YMD | Black / White - 001 (Out of Stock) | 1369477-001-YMD | In stock |
| YLG | Black / White - 001 (Out of Stock) | 1369477-001-YLG | In stock |
| YXL | Black / White - 001 (Out of Stock) | 1369477-001-YXL | In stock |
| YXS | White / Black - 100 | — | In stock |
| YSM | White / Black - 100 | — | In stock |
| YMD | White / Black - 100 | — | In stock |
| YLG | White / Black - 100 | — | In stock |
| YXL | White / Black - 100 | — | In stock |

## Categories

- **Categories:** Kids > Boys > Shirts & Tops

## Additional Attributes

- **fit:** Fit: Tight, form-fitting but non-compression; designed to fit 1 to size
- **brand:** UnderArmour
- **best for:** Best for: hot-weather youth football, lacrosse & contact-sport training or games
- **features:** Wicks sweat & dries fast to keep young athletes cool & dry through hot practices & games, Ultra-soft, lightweight HeatGear® fabric feels smooth against skin without weighing you down, 4-way stretch moves in every direction so young athletes cut, sprint & throw without restriction, Mock neck collar lays flat under a helmet for full neck coverage without bunching, Full-length sleeves add arm coverage without trapping heat, Flatlock seam construction reduces chafe at high-friction points during extended wear under equipment, Odor control technology minimizes odor, so the shirt stays fresh through repeat practices & wear, Tight fit sits close to the skin without the squeeze of compression–fits 1 to size for this snug fit, 90% Polyester/10% Elastane, Imported, Machine wash cold inside out with like colors; use only non-chlorine bleach when needed; tumble dry low, Do not iron or dry clean, Do not use fabric softeners—they coat performance fibers & degrade moisture-wicking over time
- **material:** 90% Polyester/10% Elastane
- **style number:** Style #: 1369477
- **positivenotes:** Keeps You Cool, Fast-Drying, 4-Way Stretch
- **merchantreturndays:** 60

## Enrichment

- **Type:** baselayer
- **Type Synonyms:** compression shirt, long sleeve training top, mock neck shirt
- **Gender:** male
- **Age Groups:** kids
- **Activewear:** Yes
- **Tags:** mock neck, long sleeve, moisture-wicking, stretch fabric, athletic fit
- **Styles:** sporty, athletic
- **Colors:** black, white
- **Color Families:** Black, White
- **Category Path:** Apparel & Accessories > Clothing > Underwear & Sleepwear > Sleep & Loungewear > Thermals & Base Layers
- **Fabric:** Elastane (Spandex / Lycra), Polyester
- **General Clothing Features:** Stretchable
- **Insulation Level:** Cooling, Lightweight
- **Pattern:** Logo, Solid
- **Canonical Brand:** Under Armour

## Images

- ![Image 1](https://cdn.octogen.ai/1a495214c34bb69880be1a2904b4c447/01f94408c5240cf7775b9fa9bc4ab9f5.webp)
- ![Image 2](https://cdn.octogen.ai/1a495214c34bb69880be1a2904b4c447/451d1c7ff64c708eb543c87c00be40ae.webp)
- ![Image 3](https://cdn.octogen.ai/1a495214c34bb69880be1a2904b4c447/4ac399627a4739ec65691bf9d05df412.webp)
- ![Image 4](https://cdn.octogen.ai/1a495214c34bb69880be1a2904b4c447/9875f6df5fb995dcc2887460fb547432.webp)
- ![Image 5](https://cdn.octogen.ai/1a495214c34bb69880be1a2904b4c447/99c390fb2b6274179e578769c67e5f70.webp)

---
*Source: cosimo.shop | Product ID: 389325dd-ae0d-578d-89d3-6d70f1a71b6f | Canonical URL: https://cosimo.shop/product/under-armour/heatgear-4140ff8d-3500-410c-9ea3-0ceacf737fb1*