training bra vs regular bra

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  What are the differences between training bras and sports bras? I'm not asking about the differences in their purposes but their designs and materials. - Quora
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  When to Replace a Training Bra – Bleuet
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  Do Training Bras Need to Be Broken In? - Yellowberry
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  Remember The Training Bra? What Exactly Was It Supposed To
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  What are the differences between training bras and sports bras? I
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  Should I, as a transgender woman (MtF), wear a sports bra to bed to help shield my developing breasts (crazy chafing) or will compression slow/hinder growth? - Quora