Hyperflex AMP 3 Series Women's 1.5mm Short Sleeve Top This brand new Hyperflex AMP 3 Series Women's 1.5mm Short Sleeve Top is redesigned and is one of the best, warmest and flexible short sleeves top ever produced by Hyperflex. They are great for wearing on the beach or in the water. Instead of cotton, this top is made of 1.5 mm. AMP stretch neoprene to lock in heat. It also has flat lock joints and waist snap cord. The Hyperflex AMP 3 Series Women s 1.5mm Short Sleeve Top is fast drying and protects your body from moister, special for women who loves to do surfing in extreme conditions due to its durability and flexibility.