Colorado is a natural place to launch an activewear brand, given how active and outdoorsy people are here. But until now there hasn’t been a lot of attention paid to performance apparel for girls.

During your kid’s tween years, something interesting happens fashion-wise: they begin to develop a style. Sometime between the ages of 8-12, they stop haphazardly grabbing whatever’s in their drawer, ...

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Editor's note: Shannon Tennyson and her clothing line, CALZICO, which was developed for tween girls, is next up in our Made by Mom Gift Guide features. As just about any mom of a tween girl knows, the ...