Mountain Hardwear - Polartec Power Stretch 1/2 Zip. Color Dark Storm. On sale for $99.00. MSRP $150.00.. 4.3 out of 5 starsBrand NameMountain HardwearProduct NamePolartec Power Stretch 1/2 ZipColorDark StormPrice$99.00MSRP: $150.00