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Craft Extreme Zero Base Layer Short Sleeve vs REI Co-op Merino Wool Base Layer Crew

Weight and specs compared for 2026 — and which one to choose.

Craft Extreme Zero Base Layer Short Sleeve is the lighter option — 110 g lighter than the REI Co-op Merino Wool Base Layer Crew (58% less weight). If grams matter to you, that is the one to beat.
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Spec Craft Extreme Zero Base Layer Short Sleeve REI Co-op Merino Wool Base Layer Crew
Weight 80 g · 0.080 kg · 0.18 lb 190 g · 0.190 kg · 0.42 lb
Brand Craft REI Co-op
Category Clothing - Base Layer Clothing - Base Layer
Craft Extreme Zero Base Layer Short Sleeve
80 g

Ultralight merino blend base layer inspired by cycling design. Lightweight knit construction ideal for high-output activities. Excellent moisture management and...

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REI Co-op Merino Wool Base Layer Crew
190 g

Budget-friendly merino wool base layer for backpacking.

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Craft Extreme Zero Base Layer Short Sleeve vs REI Co-op Merino Wool Base Layer Crew: which should you buy?

If saving weight is your priority, the Craft Extreme Zero Base Layer Short Sleeve wins — at 80 g it is 110 g (58%) lighter than the REI Co-op Merino Wool Base Layer Crew (190 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.

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