Stacks of R.M. Williams new season Winter apparel and accessories have arrived in store and online at Assef's. R.M. Williams sweaters for men and women, long sleeve t-shirts, rugby jerseys, blazers and socks. Plus, your furry friend can now walk the streets in style with the new R.M. Williams dog collar. Collins Shirts, the always popular Mulyungarie fleece tops, vests and more, the new Winter R.M. Range has it all.