I love the design and color of this jacket. when i saw it pictured, i thought it was a vest. the sleeves and collar are made of a contrasting type of fabric; the sleeves are a knit but fit in very well with the design of the jacket.
i ordered a small because i had ordered a small in a vest made by the same manufacturer. 
this jacket runs smaller, the sleeves were very tight , and overall it was just too small. had to return it.