C3不是用来保暖的。官方定位baselayer。定位排汗，运动时不会妨碍动作，防臭。
说C3保暖的要么是利益相关，要么就不懂装懂。
baselayer都不是用来保暖的，重要的话也不用重复三遍！
官方介绍：
The Patagonia Men's Capilene 3 Midweight Crew Long-Sleeve Shirt is a versatile baselayer for a wide range of cold conditions. The jersey face exterior makes layering a breeze so you don't have to readjust after you put on every layer. When you're on the slopes, you'll notice how the stretchy knit lining moves with you so you don't feel restricted while you pop off kickers or bomb peaks.
Polartec Power Dry uses 100% polyester to quicken wicking and drying potential for this breathable baselayer
Polartec Power Dry features partially recycled polyester
Polygiene permanent odor control keeps the shirt from retaining odor so you don't have a stinky shirt after a few days of backpacking, skiing, or touring
Stretchy knit moves with you so you don't have any restricted movements during critical moments
Smooth fabric exterior allows you to slide over layers to reduce bulk
Durable fabric lasts season after season
