I wear these leggings as long underwear. So far I haven't noticed any issues with them with moderate activity. I washed and dried them; they don't seem to have settled. The inner parts of the legs are made of ventilated material that allows air to pass through. The airflow keeps them slightly cooler than some of the lightweight, moisture-wicking long underwear I've worn in the past. Fits fairly snug but stretches enough not to restrict.
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