Women's Specialized Cycling Jacket. Packable design allows the jacket to be easily packed into its own zippered back pocket, making it ideal for carrying it with you when you're unsure on the weather. Back vent. Size small Approximate measurements: taken flat Underarm to underarm: 19” Length (From middle of back to hem): 26" Condition: Great condition - has some fade marks on inner collar. Please see last two photos.