XSPAN Premium Neoprene - 250% 4-way super stretch neoprene.nDurable hi-grip palmnGlued and sewn seamsnEasy on/off designnAnatomical fitnNeoSport has taken warmth and flexibility to the next level with its proprietary X-SPAN superstretch neoprene. X-SPAN gloves mold to your hand and provide nearly limitless stretch by combining 2 super elastic fabric laminates with a super soft neoprene. The result is unparalleled performance and comfort in a product that won't break the bank! Sealed seams keep cold water from flushing the glove. Also features a durable hi-grip palm. Water Temp Guidelines: 3mm is good for 60 degrees and up; 5mm is good for 50 degrees and up; 7mm is good for 40 degrees and up. Sizing Note: Sizing is unisex and based on MEN'S golf or ski glove sizing. Women usually adjust 1 size down from their regular glove size.