This kind of cycling vest is super windproof and UV-resistant. Three rear pockets with zipper for keeping small items.Reflective stripes for safe riding during the night. Unique design makes your cycling more attractive. Pls note that the clothing size information is just for reference only.This is Chinese Size. CN size may be 1-2 size smaller than US size. Slim men may be choose 1 size up. For example, if you wear Us M, please choose L here. Overweight men should choose 2 sizes up. For example, if you wear Us M, please choose XL here. Women may be choose 1 size up. Overweight women should choose 2 larger size. Please Check the Size Chart Image Before Ordering And Allow 1-3cm (0.4-1.2″) Differences Due To Manual Measurement.