What Our Gearhead(R) Experts Are Saying:"I bought this for my nephew after he kept stealing my old baselayers for sledding trips, and the thumbholes finally kept his sleeves from riding up. It breathes well enough that he never overheats even when he's running around nonstop."Kids don't sit still long enough to worry about staying warm, which is exactly why the Capilene Midweight Crew Top earns its spot in the layering rotation. Patagonia knit it from recycled polyester that wicks sweat fast, so whether it's a snowball fight or a long stretch in the sled, the fabric keeps up without trapping heat. Raglan seams and underarm gussets let arms swing freely, and the drop tail hem stays tucked in through all that movement. The details are what make it work day after day. Internal neck tape keeps things soft against the skin, thumbholes anchor the sleeves under gloves and mittens, and a locker loop makes it easy to hang dry between adventures. It's built to layer under a shell and disappear, doing its job quietly while the fun happens on top.