Arc'teryx Cerium SL Down Jacket vs Senchi Designs A90 Half-Zip Hoodie
Weight and specs compared for 2026 — and which one to choose.
Ultralight down jacket at 8.3 ounces with exceptional packability.
Full details →Active insulation mid-layer using Polartec Alpha Direct 90, delivering outstanding warmth-to-weight ratio and breathability for aerobic output.
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Arc'teryx Cerium SL Down Jacket vs Senchi Designs A90 Half-Zip Hoodie: which should you buy?
If saving weight is your priority, the Senchi Designs A90 Half-Zip Hoodie wins — at 142 g it is 93 g (40%) lighter than the Arc'teryx Cerium SL Down Jacket (235 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 - mid layer page, or browse the full gear weight database.