The Bibi Zip Baselayer Top is the layer still on when the jacket comes off for lunch on a sunny lodge deck. This women's merino wool base layer has a zipped collar that opens at the neck and a close fit that sits smoothly under a jacket or mid-layer. A pique knit of merino, polyester, and spandex carries printed artwork across the front. What Our Gearhead(R) Experts Are Saying:"Opening the collar zip on a sunny lift ride let heat out, and zipping it back up kept the chill off my neck on the way down. I wore it under a shell all day, and the merino blend never itched where the collar sat."