FJ HydroLite X short sleeve rain golf shirts are designed for warmer playing conditions with specifically placed knit panels in arms and back for increased movement and flexibility in the golf swing. Make Every Day Playable with Tour-Proven FJ Golf Outerwear. Fit & Design: Short sleeve 1/2 zip design Mock neck Performance fabric offers extreme comfort and allows complete range of motion during the golf swing Combining lightweight fabrics with a bonded liner, makes this performance piece the lightest garment ever produced by FJ Waterproof front zipper allows for easy-on and easy-off wear, while protecting you from the elements Seam sealed for complete waterproofing Technology: HydroLite(TM) System is a 100% waterproof shell Additional Details: 2 Year Waterproof Warranty