Arc'teryx Atom Jacket vs Senchi Designs Lark Hoodie
Weight and specs compared for 2026 — and which one to choose.
Insulated mid-layer with Coreloft Compact synthetic fill and stretch panels. PFAS-free DWR finish (2025). Versatile for active use in cold wet conditions.
Check price Full details →Ultralight Polartec Alpha Direct fleece hoodie with a half zip for breathable warmth as an active mid layer.
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Arc'teryx Atom Jacket vs Senchi Designs Lark Hoodie: which should you buy?
If saving weight is your priority, the Senchi Designs Lark Hoodie wins — at 142 g it is 213 g (60%) lighter than the Arc'teryx Atom Jacket (355 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.