As a D-cup hiker and backpacker I’ve tried dozens of bras over the years, searching for one that’s supportive enough for hiking but not overly sweaty, sticky, or stinky.
Most sports bras are less sweaty, more breathable, and less prone to chafing than other bras because they’re designed for athletic activity.
that’s comfortable all day in town can cause problems when you’re wearing a backpack, since there’s extra pressure on your bra straps from above.
This bra is a favorite among busty backpackers, and for good reason: the wide straps don’t dig in to your shoulders, even with the weight of a pack, and the fabric is light and breathable.