What Our Gearhead(R) Experts Are Saying:"I wore this on a backcountry camping trip where mornings started near freezing and afternoons warmed up fast. The quarter zip let me vent the moment the sun hit camp, and the fabric never held onto odor after days without a shower."Crawling out of a tent into a cold mountain morning tests any layer fast, and the Clima-Tek Raglan Top from Hot Chillys is built to handle that first chill straight through the warmth of midday hiking. The soft spun polyester feels closer to cotton than performance fabric, easy to sleep in and just as easy to move in once camp is broken down. Activated carbon regulates temperature and manages odor across multiday trips, while moisture transfer fibers keep skin dry as the effort builds on the trail. The quarter zip allows quick venting without stopping to change layers, and UPF 30 protection covers exposed skin once the sun climbs over the ridge, making this a top built for however many days the trip stretches on.