Slim Turtleneck Sweater

I have this sweater in several colours and love the versatility and fit. It looks equally good with jeans, trousers, or a dressy skirt. It's very soft, warm, and cozy, but still light and slim enough to wear under a blazer. I seem to be between sizes for this sweater - I typically wear a medium in RL, but sized up to a large in this one as the medium is quite tight under the arms (and I don't have particularly big arms or shoulders). The torso is a bit longer than I'd like in the size large and the waist is a little big, but it still drapes well and sits nicely on the waist and hips, so I'll stick with the large. (For reference, I'm 5'8" and 140 lbs.) Of note, I had to exchange the recent one that I ordered in navy, as it arrived with what looks like some faded/splotchy areas. But this seems to be a one-off, as my others have arrived in perfect condition, so I wouldn't hesitate to order again.