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. Features: 2-year waterproof warranty 2.5 layer construction is stretchable, waterproof, breathable and easily packable The HydroLite System is a 100% waterproof shell. Combining lightweight fabrics with a bonded liner, makes this performance piece the lightest garment ever produced by FJ. Waterproof front zipper Seam sealed Adjustable waterproof cuffs Four-way stretch