I have purchased a new set for both of my kids for 3 years in a row now. The wool is incredibly soft and does a wonderful job of keeping them warm while we explore outdoors our Wisconsin home.

We own Ruskovilla, Hocosa & Engel shirts. All are nice shirts and great to own. As for thickness Ruskovilla is the thickest and we often use as a stand alone shirt in colors for the cuffs are 5.5 cm wide with thickest fabric of the three. (BTY the pants are AMAZING!)Hocosa is thinner than Ruskovilla but slightly thicker than Engels. (Pants nice but nothing near the quality of Ruskovilla) Hocosa run narrower and longer in the body with slightly shorter sleeves that have small bands at cuff not hemmed compared to Engels. Engels has the thinnest fabric, wider body and hemmed sleeves that are easy for a toddler to pull up. Engels is a great undershirt for extra breathable warmed under clothing and PJ on colder days or a cooler shirt on warmer. Great value for price.

I was so pleased with this product! I love the natural color because it's an added benefit to not have dyes. It was also nearly half of the cost of other merino wool long johns and it was amazing quality. My only concern was that I would have liked an insert or other large reminder (maybe it was there and I missed it) about how to care for wool, as I washed and dried it and it now fits on a teddy bear.