Strapless tops may also not be a good choice for teens either since they can slip down easily.
This soil is spongy, and, undergoing alternate contraction and expansion from being alternately comparatively dry and saturated with moisture, allows the heavy blocks to slip down by their own weight into the valley, where they become piled up, the valley stream afterwards removing the soil from among and over them.
Strap slippage - The heaviness of the breasts can weigh down the cups of the bra and cause the straps to slip down the arm.
For maximum comfort, posture bras often have wider straps that provide more support, are less likely to cut into the shoulders and won't slip down.
The straps should be firm, and shouldn't slip down your shoulders, while the back of your bra shouldn't ride up your back.