Page Six may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. Reece Weaver and I swear by the same exercise dress — and after dancing in it all evening, I can confidently say it earns its place in my workout wardrobe. As a Dallas Cowboys Cheerleader-turned-Broadway star who is appearing in “Chicago” soon, Weaver knows a thing or two about clothes that need to keep up with movement. So, when she told me about her Halara collection, I was immediately intrigued. The athleisure brand is known for comfy, fairly priced styles, and Reece has a full edit on its…