Montbell Merino Wool Tights Light Weight vs Sea to Summit Ultra-Sil Sack 4L
Weight and specs compared for 2026 — and which one to choose.
Lightweight merino wool bottoms at 125g. 85% SUPER MERINO + 15% Nylon, ideal for hiking and trail running.
Full details →Ultralight stuff sack for food, clothing or sleeping bag.
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Montbell Merino Wool Tights Light Weight vs Sea to Summit Ultra-Sil Sack 4L: which should you buy?
If saving weight is your priority, the Sea to Summit Ultra-Sil Sack 4L wins — at 24 g it is 101 g (81%) lighter than the Montbell Merino Wool Tights Light Weight (125 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 miscellaneous page, or browse the full gear weight database.