ASICS Men's GEL-Lyte33 100% Synthetic and mesh Rubber sole Solyte Midsole Material - A lighter weight midsole compound than ASICS' standard EVA and SpEVA with enhanced cushioning and durability. Guidance Line - Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency. Rearfoot GEL Cushioning System - Attenuates shock during impact phase and allows for a smooth transition to midstance. AHAR Acronym for ASICS High Abrasion Rubber. Placed in critical areas of the outsole for exceptional durability. Weight: 7.8 oz.