The Patagonia Men’s Capilene 4 EW Bottom is a warm base layer for cold conditions on the mountains. The Capilene 4 is the warmest in the Capilene line so you can spend more time outdoors. The grid pattern on the inside insulates and once you work up a sweat, wicks moisture away from your skin to keep you dry. Stretchy fabric and a gusseted crotch permits movement so you can make it to the summit. Not too bad for sleepwear either.
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