Great for the summer months, make sure to pick up a sleeveless biking shirt. With 2 options designed by Castelli you canít go wrong. The GMP sleeveless FZ option comes in a sleek black, made of lightweight material. The sleeves and collar are made of an absorbent microfiber material to help you keep you dry. The zipper down the front runs the full length of the shirt, so you can adjust it to your liking. There are 3 pockets on the back of the jersey, and even a zippered pockets to protect your most important items. With 2 reflective tabs this shirt is good for day or night. This simple black top is hard to pass up on. The other Castelli option is the Dolce sleeveless shirt. This shirt is lightweight, keeping you comfortable in the heat. With an invisible zipper rear pocket you donít have to worry about where to keep your necessities during rides. This sleeveless top in a fun, bright color makes it the perfect shirt for summer.