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Ride dry.

Castelli's Sottile Due Vest is the lightest, most packable vest in its 2013 lineup. At around 64 grams, it’s the race-weight vest that you can easily retrieve from your rear pocket the moment that you’re confronted with either light rain or a long descent.

The Sottile Due Vest is made from a semi-transparent, slightly stretchable fabric that is rated at 10,000 mm of waterproofness, is wind-resistant, and is highly breathable. And in case you’re wondering, this rating means that a 10,000mm fabric will repel a column of water up to 10,000mm in height, or about 32 feet. In more relatable terms, this vest provides nearly the same waterproofness as a typical pair of ski pants.

In terms of fit, the Sottile Due has a sleek, race-inspired cut with both an extended collar down and a wheel-spray-deflecting elongated rear. The narrow arm openings will virtually eliminate crosswind drafts from sneaking in, and it has a generously sized single-zip on the right side that provides easy access to your jersey pockets. Accordingly, the days of fussing with your vest to reach your rear pockets are over.

For an increased visibility to motorists in low-light conditions, Castelli has also added reflective elements throughout the vest.

The Castelli Sottile Due Vest is available in six sizes from Small to XXX-Large and in the colors Yellow Fluo and Transparent. Please note that Castelli estimates a useful temperature range of about 50 to 64 degrees Fahrenheit for this vest.

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Here's what others have to say...

1 5

Impossible to zip closed, part 2

  • Familiarity: I returned this product before using it

Same as the review below. Haven't even attempted to ride with this vest as the zip will not close as it gets caught in the flappy piece of material at the top. Seems that it would be a good product, especially fit-wise, but if it doesn't work as it should, don't even waste your time with it.

1 5

Impossible to zip closed

  • Familiarity: I returned this product before using it

Nice concept but poorly executed. The flappy bit of zipper garage at the neck snagged every time I tried to zip it closed. The garage needs to be a stiffer, non-snag material. Actually, an emergency vest like this doesn't even need one.

4 5

Size Down

  • Familiarity: I've used it once or twice and have initial impressions

I wear an XL Castelli jersey but needed to downsize to L for this vest. The XL flapped mightily in the wind around the arms and shoulder. It is very packable and does a good job keeping the wind off but I haven't encountered rain yet. I liked the idea of the access zipper in the back but it's not so useful while wearing midweight gloves.