The new and updated RAPHA CORE JERSEY has been manufactured of a new and stretchier fabric for a closer fit but without making you feel uncomfortable. The new fabric is very soft and very breathable, so you can use it next to your skin or simply on top of a base layer. The design is very simple but it is combined with contrast logos on the rear and on the chest, and with the Rapha's signature armband to create an amazing look. The Rapha designers have worked very hard to make the shoulders seams cleaner, preventing the bunching of the fabric under the lower part of the arms. Raglan sleeves and super stretchable panels provide stability for the on-bike positions and as well when riding on the drops, and laser-cut silicon on the rear waist keeps the jersey in place. Rubbed material is used at the collar, the cuffs are and on the armband for a beautiful contrast. Of course, the 3 rear pockets allow you to carry the essentials and have been updated with an elastic hem to increase the security on the pockets. A basic garment of your wardrobe, the Rapha Core Jersey is the perfect weapon for your day to day rides. is the standard choice of cyclists all around the globe for any kind of riding. For the warmest days, Rapha has created a lighter and brighter: The CORE LIGHTWEIGHT . With a similar fit and cut as the original Rapha Core, they have maintained the comfort but using two ultralight fabrics that bring extra comfort in the warmers and most humid conditions. DETAILS AND MATERIALS - Ribbed lines for the collar and cuffs. - Side Panels and raglan sleeves to achieve the perfect clothing fit. - The regular core has 125 gms fabric on the front back - Amazing soft collar and cuffs for much better comfort. - Elastic grip on the lower waist. Wide and secure elastic gripper on lower - Elastic lower pockets expand to take your essentials with you - Full-length super easy glide zip for the vest ventilation - 100% polyester