A good oversized T-shirt can make an outfit feel relaxed without looking careless. The trick is choosing the right colour and getting the proportions right. White oversized T-shirts, black oversized T-shirts, brown oversized T-shirts and blue oversized T-shirts each create a different look, even when the fit is similar. Whether you're dressing for a casual day out, a weekend plan or simply want something comfortable for everyday wear, these four colours are worth having in yo