Hocosa of Switzerland Big Kids Organic Wool-Silk Long-Sleeve Underwear Shirt

My 7 yo wears thermal layers daily( 3) this shirt varies from base layer, to layer two or three. No pilling, tearing or erosion. Feel is nice and smooth, does not pick up stains like more absorbent layers can. He is In this 3-5 days a week. We have washed rarely but still several times ND it doesn't have the same tendency to shrink. Guessing the silk is a higher ratio to wool than our others.

The sleeves are disproportionately short to the rest of the shirt. I bought 152 size for a 12 yr old, which fits great in the torso, but the sleeves are 4 inches too short. Once washed, could go to elbow length. The cut is for a toddler anatomy and not an older child. Pants of the same size fit perfectly, if not a little long, but good. Little extra length will allow for shrinkage and growth. But the normal torso with the shirt sleeves on the shirt? Do I need to get a larger size to get normal sleeve length, but too large everywhere else?

Excellent quality of breathable fabric (wool & silk), comfortable and perfect base layer for skiing or cold weather activities. I've ordered these for years as my kids grow and the sizing is always spot-on.

Shrinks in a cold water wash and air dry. Expensive one time use for bottom and top over $100 plus.