Tweed is a unfinished woolen fabric, of a soft, open, flexible texture resembling cheviot or homespun, but more closely woven. It is made in either plain or twill weave and may have a check or herringbone pattern. Subdued, interesting color effects (heather mixtures) are obtained by twisting together differently colored woolen strands into a two- or three-ply yarn. Tweeds are desirable for informal outerwear, being moisture-resistant and very durable. Once worn in, tweeds are commonly worn for outdoor activities such as shooting and hunting, in both Ireland and the United Kingdom. Tweed has recently come back into fashion with many high street shops and designers adopting the material.