Nike Women's Swift Therma-FIT ADV Reflective Running Vest Size:M They allow for a slower

They allow for a slower release of bicarbonate in the intestine — which can both help reduce stomach issues and lengthen the duration of the bicarb effect

wider field of view

Natural heating and cooling function

Gusset lining: 100% polyester

Their lightweight seersucker material features side-to-side stretch to help you stride freely

Nike Women's Swift Therma-FIT ADV Reflective Running Vest Size:M They allow for a slowerUsing insights from runners like you, we prioritized functionality in this slim fitting running vest. Its sleek, reflective material combines with lightweight synthetic insulation and our heat regulating tech to help you stay warm mile after mile. Nike Therma FIT ADV technology combines heat regulating fabric with advanced engineering and features to help keep you warm in cold weather conditions. Synthetic fill helps keep you insulated and warm.