Asics - Gel-Guts II (Storm/Dawn Blue/Rust) - 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). A technical trail running shoe for the off-road athlete who seeks aggressive traction. GEL Cushioning System attenuates shock during impact phase. AHAR Heel Plug provides abrasion resistance at initial impact. Trail Lugs provide traction on varied terrain. Shoe weighs 12.1 oz.