Whether you&';re wearing it with other HydroSkin pieces or just need a little extra warmth with your boardshorts, the NRS Women&';s HydroSkin 0.5 Long-Sleeve Shirt offers full coverage lightweight insulation. 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 0.5 mm Terraprene(TM) neoprene with heat-reflecting titanium locks in your body&';s warmth. a NRS Rashguard panels under the arms for increased breathability. 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:- 9.6 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:- Women Features: a Titanium laminate adhesive a Water-based adhesives