Here's what other sites are saying:
If you start off your cool-weather run with too many layers, you'll be sweating up a storm by mile two. If you head out with too few layers, you may decide to head back home before you reach the end of the driveway. The Peak Performance Women's Biegga Vest provides just enough wind protection and insulation to keep the cold at bay but is plenty breathable so that your body temperature stays comfortably regulated.
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