Patagonia Capilene top and bottom Size: 3-12M I didn't use them much and they're now too small, but I intended to use them more, so there's a name stamp on the tag. There are no tears. The top's inner layer buttons to the bottom, so you can probably use it up to around 2 years old if you don't button it. Patagonia Capilene is a high-performance base layer product. It's stretchy, durable, moisture-wicking, and quick-drying, and also has excellent heat retention, so it can be widely used as underwear for ski wear, loungewear, pajamas, etc.