Sunspel knows more than a thing or two about comfort, having honed its craft to perfection since its founding in 1860. The Loopback sweatpants serve as proof, the fabric finds its origins in sportswear and is defined by the ability to wick moisture from the body. Here combined with ribbed cuffs and a drawstring fastening, the fabric also serves to trap heat inside and keep you warm at all times. How to wear Harrods: Style with a zip-up hoodie, T-shirt and sweatpants.