Patagonia Nano-Air Ultralight Full-Zip Hoody vs Senchi Designs A90 Half-Zip Hoodie
Weight and specs compared for 2026 — and which one to choose.
Ultralight active insulation hoody with 20g FullRange insulation. 254g (men's medium). Minimal weight layering piece for variable mountain days.
Check price Full details →Active insulation mid-layer using Polartec Alpha Direct 90, delivering outstanding warmth-to-weight ratio and breathability for aerobic output.
Check price Full details →Patagonia Nano-Air Ultralight Full-Zip Hoody 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 112 g (44%) lighter than the Patagonia Nano-Air Ultralight Full-Zip Hoody (254 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.