Patagonia Capilene Cool Trail Shirt vs Smartwool Merino 150 Base Layer Short Sleeve
Weight and specs compared for 2026 — and which one to choose.
Ultralight polyester base layer for warm weather hiking.
Full details →Lightweight 150g/m² merino wool short-sleeve base layer with natural odor resistance, ideal for warm-weather hiking and backpacking.
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Patagonia Capilene Cool Trail Shirt vs Smartwool Merino 150 Base Layer Short Sleeve: which should you buy?
If saving weight is your priority, the Smartwool Merino 150 Base Layer Short Sleeve wins — at 133 g it is 7 g (5%) lighter than the Patagonia Capilene Cool Trail Shirt (140 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest clothing - base layer page, or browse the full gear weight database.