Montbell Plasma 1000 Down Jacket vs Senchi Designs A90 Half-Zip Hoodie

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

Senchi Designs A90 Half-Zip Hoodie is the lighter option — 43 g lighter than the Montbell Plasma 1000 Down Jacket (23% less weight). If grams matter to you, that is the one to beat.

Spec	Montbell Plasma 1000 Down Jacket	Senchi Designs A90 Half-Zip Hoodie
Weight	185 g · 0.185 kg · 0.41 lb	142 g · 0.142 kg · 0.31 lb
Brand	Montbell	Senchi Designs
Category	Clothing - Mid Layer	Clothing - Mid Layer

Montbell Plasma 1000 Down Jacket

185 g

Ultralight 1000-fill down jacket. Among the lightest available.

Full details →

Senchi Designs A90 Half-Zip Hoodie

142 g

Active insulation mid-layer using Polartec Alpha Direct 90, delivering outstanding warmth-to-weight ratio and breathability for aerobic output.

Check price Full details →

Montbell Plasma 1000 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 43 g (23%) lighter than the Montbell Plasma 1000 Down Jacket (185 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.

More clothing - mid layer comparisons

Montbell Plasma 1000 Down Jacket vs LGT Balaclava Montbell Plasma 1000 Down Jacket vs Black Diamond Deploy Down Jacket Montbell Plasma 1000 Down Jacket vs Montbell Ex Light Down Jacket Montbell Plasma 1000 Down Jacket vs The North Face FutureFleece Hoodie Montbell Plasma 1000 Down Jacket vs The North Face FutureFleece Full-Zip Hoodie Montbell Plasma 1000 Down Jacket vs Patagonia Micro Puff Jacket