The AKONA rashguard is your solution to UV protection. The 8oz. (227 g) 4-way flex nylon / spandex composite has a 50+ sun block rating, that blocks 97.5% of the sun's harmful rays. The rashguard is fast drying and odor resistant. This very breathable rashguard has flat lock stitched seams for strength and comfort. rashguard is available in red/black, pink/white or blue colors and comes in 6 sizes from XS to 2XL.