You're looking at the York Jazz Multi Blue Knit Suit Vest, cut in performance wool blend cloth. The name tells you the shade, and the cloth carries it well.

The fabric is 99% wool and 1% elastane. Wool lets creases fall out overnight on a hanger. Elastane adds give, so it moves with you. It's made to order from your measurements.

You can wear the vest with the matching jacket or by itself with your sleeves rolled. The vest fills the space between your shirt and jacket and keeps your tie in place.

Bottom button open.

It works under the matching jacket at formal events and alone with a shirt and tie at relaxed ones. Pair the blue with a white shirt for meetings, or a pale pink one when you'd like some color. Worn on its own at a summer wedding with the sleeves of your shirt rolled, a vest looks relaxed and still clearly dressed for the occasion. Look for a blazer in the same York Jazz Multi Blue Knit cloth.