HardWear Heavy Duty Canvas - weather-resistantDIAMOND-TECH® 2.0 Fabric - strategically positioned on high-stress areas for extra durabilityFOAM Protection - 5mm closed cellExpandable Sidewall - FOAM 5mm closed cellMarine-Grade corrosion resistant zipsAero Mesh Ventilation System - to keep boards coolFin slotFOAM Padded handle - for carrying comfortStash Shoulder Strap - FOAM 10mm paddedIndustry-leading 2-year warranty