We've been using this jersey loads in the winter weather and it has quickly become a firm favourite.
Made from thick polyester with a ridged, corduroy-esque inner surface, it traps a whole lot of air around your body to keep you warm. However, unlike Cannondale's LE jersey, it's not windproof, so we've been wearing a gilet on top to keep the cold air out on frosty mornings.
It is highly breathable though, so you never get that boil-in-the-bag clamminess on tough climbs.
The cut is close with a high neck and good length in the arms, while the fabric is stretchy enough that it doesn't feel restrictive. You get the traditional three pockets in the lower back, plus another that's zipped and a further one on the chest, and a baffle behind the full-length zip to beat the breeze.
There's also reflective piping on the hem and shoulders to help get you noticed at night. Although it's far from the most feature-packed jersey out there, it handles the basics well.