1 Did you know breasts can bounce up to 15cm in any direction if you’re not wearing the right sports bra? Getting enough support is important because otherwise the delicate ligaments of the breast can stretch, exacerbating any natural sagging. At M&S, there are three levels of support available in our Goodmove sports bra range: medium for low-impact exercise such as yoga or Pilates, high for dancing or racket sports and extra-high for activities such as running or HIIT classes.

2 If you have larger breasts, always opt for high or extra-high-impact support, as your bust will naturally move more and therefore need extra hold.

3 When buying a sports bra, always buy the same size as your normal bra. It may feel firmer, but this is because it’s designed to minimise bounce. However, it should still feel comfortable and allow complete freedom of movement – if in doubt, mimic the activity you are planning to do in the bra when you try it on.

4 A cross-back bra is a good idea if you want extra support and hold for the bust. These work by anchoring the straps firmly across the body and reducing the movement of the fabric.

5 Sweat can deteriorate fabrics if not washed out, so pop your sports bras in the washing machine after each wear. All M&S bras are tested for durability, so they can withstand multiple washes. As sports bras are vital to support and protect the breast tissue, it’s a good idea to replace yours every year to ensure you’re getting the optimum performance from your bra.

6 Look for breathable fabrics to help you stay cool and comfortable when you exercise. Goodmove bras feature moisture-wicking fabric to draw sweat away from the body allowing it to evaporate more quickly. We also use lightweight fabrics and meshes in certain areas that require more ventilation. Complete your look with our brilliant sculpting leggings and beat the January blues in style.