Women's Altra Experience Flow Size:8.5 OS1st's Skin Thin Zones Technology

OS1st's Skin Thin Zones Technology keeps your legs cool and applies varying levels of pressure to six different zones

Linear Energy Point (LEP) – a TPU plate makes transitions smooth

- quick n' fit is made of a magical combination of 94% poly/ 6% spandex- Super lightweight & quick drying- Tailored fit (also known as not boxy or fussy)- Machine wash cold

The Large Pocket SPIbelt® expands to hold larger smartphones

The Guide 17 still features Saucony’s soft and responsive PWRRUN foam

Women's Altra Experience Flow Size:8.5 OS1st's Skin Thin Zones TechnologyWHAT'S NEW Lightweight and responsive compression molded midsole foam for an effortless feel Sleeker design for a contemporary and adaptable style Low drop complements rocker shape geometry for an efficient toe off Natural fit with a roomy toe box TECHNOLOGY Rocker Shape Geometry 4MM Low Drop Lightweight Compression Molded Midsole