Often yes. Since strapless bras rely entirely on the band for support (no straps to help), many experts recommend sizing down one band size and up one cup size. This maintains the same cup volume while ensuring the band grips firmly. For example, if you're normally 34C, try 32D for strapless.

The most common cause is a band that's too loose. Try a smaller band size with the same cup volume (sister size down). Also ensure your bra has silicone grip strips and consider a longline style. Avoid applying lotion before wearing, as this reduces grip.

Traditional strapless bras work best for cups A-DD. For larger cups (DDD+), look for longline styles with boning, molded cups, and wide grip bands. Specialty brands like Elomi, Curvy Kate, and Wacoal offer supportive strapless options up to G/H cups.

With the right style, yes. For D cups and above, choose longline strapless bras with underwire, side boning, molded cups, and wide silicone grip bands. Brands like Wacoal Red Carpet, Elomi Smoothing, and Panache Evie are designed specifically for larger busts.

If the bra rides up, the band is likely too loose or the cups too small. Try a smaller band with larger cups (sister size). For additional security: choose styles with silicone grips, opt for longline bras, and apply fashion tape along the top edge.