Asics - Gel-Trabuco VI H2O (Lightning/Lightning/Vapor) - Women's: Zappos.com suggests selecting 1/2 size larger than you would normally wear in a casual/dress shoe (if you wear a size 8, select a size 8.5). An innovative trail shoe engineered to exceed the demands of the on and off road runner combining traction, support and cushioning. A stable running shoe designed for mild to moderate over-pronators. Extended DuoMax Medial Post provides static stability and shores the midfoot on uneven terrain. Water Resistant Breathable Upper helps keep feet drier in all climates. GEL Cushioning System provides rearfoot and forefoot shock attenuation at initial impact and propulsion phase. Uphill/Downhill Lugs on outsole are configured to aid in propulsion uphill and braking on downhill terrain. Trusstic System Links the rearfoot and forefoot and shores the midfoot. Shoe weighs 11.5 oz.