Work hard and train even harder with the Under Armour Boys Project Rock Hard Work Tee. Made from UA Tech fabric, this tee is quick drying and ultra soft for all day comfort. The material wicks sweat away while anti-odor technology prevents the growth of odor-causing microbes for a fresh feel even after your session.
Features
- Fabric: 100% Polyester
- UA Tech™ fabric is quick-drying, ultra-soft and has a more natural feel
- Material wicks sweat and dries really fast
- Anti-odor technology prevents the growth of odor-causing microbes
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Under Armour Kids Size Guide
Clothing Sizes
| BOY’S TOPS | |||||
|---|---|---|---|---|---|
| Label | YXS | YS | YM | YL | YXL |
| Chest (cm) | 63.5 – 66 | 66 – 71.1 | 71.1 – 76.2 | 76.2 – 81.3 | 81.3 – 86.4 |
| Waist (cm) | 55.6 – 58.4 | 58.4 – 70 | 63.5 – 66 | 66 – 68.6 | 71.1 – 73.7 |
| Height (cm) | 122 – 127 | 127 – 137 | 137 – 149 | 149 – 160 | 160 – 170 |
| US Size | 7 | 8 | 10 – 12 | 14 – 16 | 18 – 20 |
| BOY’S BOTTOMS | |||||
|---|---|---|---|---|---|
| Label | YXS | YS | YM | YL | YXL |
| Chest (cm) | 55.6 – 58.4 | 58.4 – 70 | 63.5 – 66 | 66 – 68.6 | 71.1 – 73.7 |
| Waist (cm) | 64 – 66 | 67 – 71 | 74 – 77 | 81 – 85 | 89 – 93 |
| Height (cm) | 122 – 127 | 127 – 137 | 137 – 149 | 149 – 160 | 160 – 170 |
| US Size | 7 | 8 | 10 – 12 | 14 – 16 | 18 – 20 |
| GIRL’S TOPS | |||||
|---|---|---|---|---|---|
| Label | YXS | YS | YM | YL | YXL |
| US Size | 7 | 8 | 10 – 12 | 14 – 16 | 18 – 20 |
| Chest (cm) | 63.5-66 | 66-71.1 | 71.1-76.2 | 76.2-81.3 | 81.3-86.4 |
| Waist (cm) | 55.6-58.4 | 58.4-70 | 63.5-66 | 66-68.6 | 71.1-73.7 |
| Height (cm) | 122-127 | 127-137 | 137-149 | 149-160 | 160-170 |
| GIRL’S BOTTOMS | |||||
|---|---|---|---|---|---|
| Label | YXS | YS | YM | YL | YXL |
| Waist (cm) | 55.6 – 58.4 | 58.4 – 70 | 63.5 – 66 | 66 – 68.6 | 71.1 – 73.7 |
| Hip (cm) | 64 – 66 | 70 – 72 | 76 – 81 | 86 – 91 | 97 – 102 |
| Height (cm) | 122 – 127 | 127 – 137 | 137 – 149 | 149 – 160 | 160 – 170 |
| US Size | 7 | 8 | 10 – 12 | 14 – 16 | 18 – 20 |









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