
Neckline checks
One-shoulder tops have uneven coverage by design. One side may cover a strap while the other leaves a bare shoulder. Compare a conventional strapless bra and Pop Up according to the top's back and side openings, not just its single strap.
Explore Pop UpCheck the uncovered shoulder side
Look for cup edges near the lower armhole and the exposed shoulder. The sloping neckline can cover one cup differently from the other. Keep both adhesive cups under fabric; do not assume symmetry in the bra means symmetry in the garment.
Check whether the back is covered
If the top covers a regular strapless bra's band, that style may work. If the back is open, Pop Up may be worth trying. Pop inserts are an option only when an existing bra remains part of the outfit.
Your fitting checklist
- Inspect both sides separately
- Check the sloping neckline
- Compare the back opening
Use the VELUNA size guide for the relevant product. Follow the instructions supplied with your product.
A common question
Can I use only one Pop Up cup?
Pop Up is a two-cup bra with a front clasp. Follow the supplied instructions for the complete product.
Find your outfit solution

Pop Up sticky bra
An adhesive bra with two cups and a front clasp. Worn on its own for suitable outfits.
Explore Pop UpCheck current sizes, prices and availability on the product page. Pop goes inside your existing bra; Pop Up is the adhesive bra. The right choice depends on your garment and preferred fit.