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 Durability4-Way Stretch Synthetic on Knuckles - Advanced Performance: Moisture Wicking, Breathability & FlexibilityPerforations on Palm, Top of Hand and Fingers - Moisture Reduction & Increased BreathabilityReinforced Palm Patches - Improved Grip & Durability in All Weather ConditionsOpti Fit™ Adjustable Closure - Thin, Light and Secure FitStretch Binding Cuff - Secure Feel & Moisture AbsorptionProprietary FUSETECH™ Premium Synthetic – Comfort, Flexibility and Increased Durability Leather Palm and Thumb - Improved Feel & Durability in key wear areas Micro-ventilation on Palm, Thumb, Closure and Fingers – Added Comfort, Moisture Wicking and Breathability