Tweed is a rough, woolen fabric, of a soft, open, flexible texture, resembling cheviot or homespun, but more closely woven. It is usually woven with a plain weave, twill or herringbone structure. Tweeds are an icon of traditional Irish and British country clothing, being desirable for informal outerwear, due to the material being moisture-resistant and durable. Tweeds are made to withstand harsh climate and are commonly worn for outdoor activities such as shooting and hunting, in both Ireland and the United Kingdom.