NPS (Solovair) Acorn Derby Brogue Shoes. A classic design that NPS bring out every year. You can't go wrong with a pair of brogues. But something about these seem very appealing to any generation. Coming in a natural tan which is the simplest of colours and personally the most attractive. A stunning plain shoe produced with acorn (tan) burnished calf leather uppers, leather linings and goodyear welted double leather soles.