Material with a coarse weave

TWEED

["Think of a durable fabric often associated with rustic jackets or academic attire, named after a Scottish river."]

"TWEED" fits because it’s a rough, durable fabric known for its coarse, uneven weave, often used in jackets or suits. The clue plays it straight—no wordplay—just describing the material’s texture. You might also associate tweed with classic British country wear or academic styles, but the key detail here is the fabric’s rugged, loosely woven feel.