Under Armour Challenger Train Short Sleeve - White / Black - LG

It is primarily designed for warm conditions and ventilation. It is best used as a base layer in cooler weather rather than as a standalone piece.

The technology is integrated into the fabric, but its effectiveness may diminish over many years of heavy use and industrial-strength washing.

While intended for sports, its sleek design and piping details make it perfectly acceptable for casual, athletic-style outfits.

Pre-treat with a mild stain remover and wash immediately. Avoid using bleach, as it will damage the moisture-wicking performance fibers.

When following the recommended low-heat tumble dry or hang-dry instructions, the synthetic material is highly resistant to shrinking.

Check if fabric softener was used in previous washes; if so, wash with a mild detergent to strip the residue from the fibers.

Avoid washing with items containing Velcro, zippers, or sharp metal fasteners that can catch on the technical knit.