It's been two years since our last merino v-neck buyer's guide and this timeless, versatile sweater continues to be one of those fall pieces worth investing in. Wear over a woven shirt, under a jacket, or—in its softer, shallower "V" variants—on its own. (OK, maybe with pants too.) Some favourites, priced low to high: Uniqlo [$30, 17 colours]. Tommy Hilfiger [$68, 6 colours]. Nordstrom [$75, 6 colours]. Polo Ralph Lauren [$98, 11 colours]. Brooks Brothers [$108, 16 colours]. John Smedley [$230 direct, 21 colours; staple colours can be found for $136 at my-wardrobe.com].

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