How to choose the best jeans for your shape? Simple. Know what your shape is. Are you, petite, pear shaped - or curvy? The shape of your body is less of a problem than you think. Jeans are designed around shapes. Boot cut, low risers, straight cut, classic denim, boy jeans - you name it, the designers have already sussed out the perfect pair to suit your shape. All you have to do is work out which jeans will suit you shape the best.