CERTIFICATE for uv test,added with sun protection additive to sun jacket.UPF 50+ hoodie top protects your sensitive skin from harmful UVA/UVB rays while outdoors or work out 88% Nylon, 12% Spandex. Added with cool tech to this cooling shirt ,the coolness and breathable that can be felt asa you wear it in spring,summer and autumn these three seasons Lightweight,only 0.75 lbs.Easy to pack with two full zipper pockets, full zip hooded track jacket for men.Recommended for lounging, walking the dog, gardening,traveling, do sports,also be used as a uv rash guard in the sun or on the pool/beach for mens,young man and big boys Thumb holes with long sleeve give your hands and fingers extra sunproof as arm sleeves Watch holes/windows give you extra comfortable and convenient when summer running,hiking,outdoor activities,golf,traveling and walking Mens sun jacket with long sleeve full zippered zip.Best for spring,summer and autumn these 3 seasons.This Track jacket has super sun protection ability, exceeding UPF 50+,it can protect you from harmful Ultraviolet like uva/uvb rays in the sun.Made of 170 gsm fabric,lightweight and thin is its biggest feature,easy to pack and put it in your backpack to travel.Not only a summer jacket,uv protection hoodie shirt,also a full zip clothing with two zipper pockets and a hood.Thumb holes with long sleeve give your hands and fingers extra sunproof as arm sleeves when sport ,by the pool or on the beach.Watch holes/windows give you extra comfortable and convenient when summer running,hiking,outdoor activities,golf,traveling and walking the dog.Added with cool tech,the coolness and breathable that can be felt ASA you wear it.New for 2025 men or big boy,you will like quick dry,dry fit,machine wash and uv blcoking performance.