Match the NRS Men&';s Hydroskin 0.5 Long-Sleeve Shirt with the 0.5 pant for full immersion protection or throw it on with your boardshorts for a little extra insulation in chilly water. a Premium nylon-spandex exterior sheds water and provides optimal stretch while the soft, smooth and hydrophobic interior provides insane next-to-skin comfort. a NRS Rashguard panels under the arms for increased breathability. a 0.5 mm Terraprene(TM) neoprene with heat-reflecting titanium locks in your body&';s warmth. a Paddler-specific cut combines with friction-free seams to enhance paddling performance and comfort. a Form fit restricts water entry, enhancing the insulation properties. Specs: Weight:- 12.8 oz Material:- 6 oz premium nylon/spandex; NRS Rashguard underarm panels Fit:- Form fit Neoprene:- 0.5 mm HydroSkinA(R) Seams:- Flat-lock stitched Gender Sizing:- Men Features: a Titanium laminate adhesive a Water-based adhesives