All about the base.

When you're layering up for a winter adventure, start with the Under Armour Spectra 1/2-Zip Top. Constructed with Under Armour's Base technology, this half-zip is ready to keep you warm and comfortable in cool conditions while you ski, hike, or snowshoe. The material is moisture-wicking and quick-drying so you stay dry and comfortable while you push to the summit. To keep odors at bay, the fabric has an anti-odor technology so you stay fresh on your backpacking trip. When the temperatures really start to drop, the low profile collar and the half zipper make it easy to layer up even further so you can play in comfort.

  • Half-zip fleece for warmth during moderate to intense activity
  • UA Base technology balances heat retention and breathability
  • Material is moisture wicking and quick drying for added comfort
  • Anti-odor technololgy in the material keeps the garment fresh
  • Low-profile collar with half zip allow for easy layering
  • Thumbholes keep sleeves in place and prevent heat escape
  • Next-to-skin fit without the squeeze traps in warmth
  • Reviews
  • Q & A