The shirt collar vest with detachable bib is made of Ermenegildo Zegna's cashco (a cotton and yarn fabric). CASHCO is a family of worsted fabrics made from a special blend of cotton and cashmere. Two fibers belonging to two different seasons, two different climates, combined by Ermenegildo Zegna to create lightweight, sporty yet precious and elegant fabrics. The bib is made of silk and cashmere. The combination of these noble fibers creates a texture with a warm and soft touch, making the garment light and pleasant to wear. The four pockets enhance the functionality of the garment. The refined colour combination of the two materials contributes to making it sport-chic. The fine quality of the fabric, combined with down and goose feather padding and a superlight lining, enriches the garment. The quilting and customised accessories highlight the care Eleventy takes in every detail, giving a sport-chic taste to the product.