The Callaway Weather Spann Glove allows for All-Weather Performance by incorporating durable synthetic leather combined with a 4-Way stretch synthetic. Premium Japanese Synthetic Material - Great Feel, Flexibility and Increased Durability 4-Way Stretch Synthetic on Knuckles - Advanced Performance: Moisture Wicking, Breathability & Flexibility Perforations on Palm, Top of Hand and Fingers - Moisture Reduction & Increased Breathability Reinforced Palm Patches - Improved Grip & Durability in All Weather Conditions Opti Fit™ Adjustable Closure - Thin, Light and Secure Fit Stretch Binding Cuff - Secure Feel & Moisture Absorption