Sondico Long Sleeved Core Base Layer Junior - White - 9-10

Optivent technology refers to specialized fabric construction that enhances breathability and moisture-wicking properties, helping to keep the wearer cool and dry by drawing sweat away from the skin.

Yes, its breathable and moisture-wicking properties make it suitable for use in warmer conditions to keep cool and dry, and as a comfortable, moisture-managing layer under warmer clothing in cooler temperatures.

The base layer is designed for a true-to-size, supportive 'compression' fit. We recommend selecting your child's usual clothing size for their age group (e.g., 9-10 years for this specific variant). If between sizes, consider the smaller for a tighter compression or larger for a slightly more relaxed fit.

While designed as a base layer to be worn under other clothing, it can certainly be worn on its own for training or casual activity, especially in mild weather.

Info needed: While many synthetic fabrics offer some level of UV protection, this specific product description does not explicitly state a UPF rating. It's best to use additional sun protection if extended sun exposure is anticipated.

Polyester provides durability, moisture-wicking, and quick-drying properties. Lycra (also known as Elastane or Spandex) is a synthetic fiber known for its exceptional elasticity, providing the garment with stretch, shape retention, and freedom of movement.

While it has a compression fit, it should not be restrictive or cause discomfort. Double-check the size guide; a larger size might be needed, or ensure it's put on smoothly without twists.

The `elastic hem` is designed to prevent this. Ensure the base layer is pulled down fully when worn. If it consistently rides up, the size might be incorrect; a smaller size might be too short, or a larger size might not provide enough grip at the hem.

Ensure the base layer is clean, as residue from detergents or fabric softeners can affect wicking properties. Also, verify that outer layers are also breathable, as they can hinder the base layer's ability to release moisture.

The `flat lock seams` are designed to prevent chafing. Check for any tags that might be rubbing against the skin (these can often be carefully removed). Ensure the base layer is worn right-side out and that there are no wrinkles or bunching underneath outer layers.