POLARTEC® POWER STRETCH® PRO™ has reinforced elastic fibers creating 4-way stretch that meets the demanding push and pull of activity. This agile, dual-surface fabric absorbs moisture from the skin while continuously wicking it to the outer layer for fast evaporation. Power Stretch® Pro™ outer surface has a low-friction finish, so this versatile fabric can layer perfectly with others and resist abrasion on its own.