Mammut Stratus Hybrid Jacket - Women's

Carolyn doesn't even look the least bit winded as she casually strides up the skintrack wearing the Mammut Women's Stratus Hybrid Jacket. You, on the other hand, have sweat pouring down your back because you wore a midweight jacket without underam vents. That's the last time you wear a supposedly breathable jacket without ventilation when you trek uphill.