The current economic climate and lacklustre retail markets are underlining the importance of value-added features such as performance fabrics. Wrinkle-free shirts? Old hat. Pure cotton, affordable wrinkle-free shirts? New twist. With its private label Stafford shirt, now available in a 100 per cent cotton wrinkle-free Stafford Executive version, JCPenney is adding a new dimension to the market with its high quality, low price offer. Padma Nagappan reports.