Spiral hair ties like the invisibobble aren't just for holding your hair off your face during a workout (although they're perfect for doing just that). This versatile and fun hair accessory can be used in so many sweet Summer styles, as the Love Island girls know only too well. Used in the right way, these little magic spirals can hold a bun in place, replace a dozen kirby grips in a messy updo, or keep your plaits in place in a cool, modern way. Because of the way they're structured, these bands work on all hair thicknesses and give great grip without damaging the hair. Take a look at our pick of the bunch for how best to use the bands during the warmer months, from plaits and ponytails to buns and bunches, and if the unthinkable happens to yours and it won't shrink back into shape, discover how to mend that stretched-out bobble.