The Asics GEL-Sustain TR Women's Training Shoes are a new entry to Asics performance training shoes category, weighing just 6 ounces for one of the lightest training shoes on the market. The Asics GEL-Sustain TR Women's Training Shoes feature a lightweight, supportive upper combined with an ultra-flexible midsole and Rearfoot GEL Cushioning System for the ideal shoe for gym goers everywhere.