You don’t need to be a fashion expert to figure out that the chilly mornings and balmy afternoons of spring mean a few good layers are a wardrobe essential. Throwing on a chunky cardigan with your favourite jeans? No brainer. Pairing a lightweight jacket with a floaty summer dress? So chic. But a rugby shirt? Those garishly striped garments last seen on muddy teenage boys and middle-aged men reliving their glory days at the local park on a Sunday morning? Well, actually, yes.