Lay your sports bra flat on your ironing board

Place your first finger on the outside of the strap, close to the hook closure.

Use your thumb and first finger together to feel for the hook.

Move your thumb to the outside of the strap directly behind the hook.

Move your first finger to the inside of the strap. Your other three fingers rest on the outside of the strap.

Use your fingers at the same time; your thumb will push the hook closure out of place while your first finger and last three fingers hold the strap in place.

Measure your band size by using your measuring tape to measure around your entire chest, just above your bust and underneath your arms. If the measurement is an even number, use that as your band size; for odd numbers, add one and that will be your band size.

To measure your cup size cheap lingerie, BareNecessities.com suggests using your measuring tape to loosely measure around the fullest part of your bust. Subtract your band size measurement from this measurement. Each inch that is left over represents a cup size. So if your band size was a 35 and your bust measurement was a 37 then you are a 35B.

Try on a variety of bras in this size to confirm that this is the right measurement. Strapless bras tend to need to fit tighter than other bra types. You do not have to get a smaller size though. Use your strap adjustments to get the right fit for a strapless bra.

Set your iron to a cotton setting without steam. The cotton setting is usually one of the highest settings before steam settings. Using a dry iron will protect the iron-on design as you press it to the sports bra.

Lay your sports bra flat on your ironing board. Iron the bra on the front and back sides to smooth out any wrinkles. Then, place the side that you want to decorate face up on the ironing board. You may even want to slip the sports bra through the arm of the ironing board to ensure smoothness on the side you decorate. Set your iron aside momentarily.