They run large. I've bought joggers from Champion, Hanes and Fruit of the Loom for my kids - one currently a large, the other a medium. They can't stick to the usual boys' jogger sizes. They are huge compared to other brands. I'm keeping an L so one of these can grow (someday), but there's still plenty of room around for it to grow. I had to order S for another kid because he swims in M in it. Sizing aside, these are pretty good jogging pants. They are thicker than other brands but still soft.
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