Model comparison
MERIWOOL 250 vs 400: midweight or heavyweight?
Compare MERIWOOL 250 and 400 long-sleeve crews by fabric density and layering role. Choose the weight that fits your existing winter outfit and activity.
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MERIWOOL
At 400 g/m², this interlock-knit crew is the heavyweight option in the initial catalog. Its density is the reason to consider it, not a promise that one shirt replaces a winter system.
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Your outfit needs a dense wool layer and you have space for it beneath the jacket.
Check arm mobility with the full outfit on; a heavyweight sleeve can change the fit under a close jacket.
For high-output or warm-weather trips, this density may be more fabric than you want to carry or wear.
Our assessment uses listing details and manufacturer documentation. It is not a hands-on wear test. Confirm the composition and care label for your selected size and color.
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Model comparison
Compare MERIWOOL 250 and 400 long-sleeve crews by fabric density and layering role. Choose the weight that fits your existing winter outfit and activity.
Read the guide →Field notes
Compare pure merino with nylon, elastane, lyocell and cotton blends. Read fibre percentages correctly and choose the fabric that fits your reason for buying.
Read the guide →Field notes
Compare merino fabric GSM without confusing it with shirt weight or a brand heat index. Learn what 150, 200, 250 and 320 can—and cannot—tell you.
Read the guide →Field notes
Decode the washing and drying directions on a merino shirt, separate fiber content from care permission, and resolve missing or conflicting instructions.
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