The Under Armour Y Performance Tech Junior Socks come in a convenient 3-pair pack, crafted from fast-drying, high-performance fabric designed to keep young athletes comfortable on the training pitch and in everyday life. Built on two of UA's core textile technologies, these socks deliver reliable moisture management and a genuinely soft, natural feel that kids won't want to take off.
Moisture Transport System — UA's proprietary wicking technology draws perspiration away from the skin and moves it to the outer surface of the fabric, where it evaporates rapidly, keeping feet drier for longer during intense activity. UA Tech — a lightweight fabric with an ultra-soft, natural feel engineered for unbeatable all-day comfort, whether worn during training sessions or casual use.
UA's Moisture Transport System is a proprietary fabric technology developed specifically to tackle sweat during high-intensity activity. It works by actively drawing moisture away from the skin and channelling it to the outer surface of the fabric, where it can evaporate quickly. The result is feet that stay significantly drier for longer, reducing discomfort and the risk of blisters. This technology makes the socks equally suitable for intensive sports training and all-day casual wear.
UA Tech is Under Armour's signature lightweight fabric construction, engineered to deliver an ultra-soft, natural feel against the skin. Unlike standard synthetic fabrics that can feel stiff or irritating after prolonged wear, UA Tech maintains its soft touch through repeated washings. The lightweight nature of the fabric ensures the socks never feel heavy or restrictive, making them an ideal choice for young athletes who need comfort and freedom of movement from warm-up to cool-down.
The Locked-In Fit construction is a dedicated heel-hold system that keeps the sock precisely positioned on the foot throughout any activity. Traditional socks tend to slip down the heel during running, jumping, or other dynamic movements, leading to uncomfortable bunching inside the shoe. Under Armour's Locked-In Fit design eliminates this problem by engineering the heel zone to grip and stay in place, so young athletes can focus entirely on performance without stopping to adjust their socks.
Cushioning is placed strategically across the entire footbed to absorb impact in the areas where it matters most — the heel, ball, and forefoot — without creating unnecessary bulk inside the shoe. This balanced approach to cushioning provides meaningful comfort and protection during high-impact activities such as running and court sports, while keeping the overall profile of the sock slim enough to fit comfortably inside any athletic footwear. The result is a sock that genuinely protects without compromising fit.
Open-weave mesh panels are strategically positioned on the top of the foot — the instep — to maximise breathability precisely where heat and moisture tend to accumulate most. By allowing air to circulate freely through the upper part of the sock, these panels work in tandem with the Moisture Transport System to regulate foot temperature and keep kids feeling fresh. This feature is particularly valuable during warm-weather training or extended periods of physical activity.
An integrated arch support band is woven directly into the structure of each sock, providing gentle compression and stability around the midfoot. This targeted support helps to reduce the accumulation of foot fatigue during long training sessions, extended school days, or competitive matches. By keeping the arch properly supported, the socks contribute to better overall foot comfort and can help young athletes maintain their performance level for longer without discomfort.
| Composition | 98% Polyester, 2% Elastane |
| Pack Contents | 3 pairs |
| Colour | White |
| Intended Use | Junior / Children |
| XS | S | M | |
|---|---|---|---|
| EUR | 27.5–31 | 31.5–36.5 | 36.5–42 |
| CM | 16.5–19 | 19–23.5 | 23.5–26.5 |
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