Hyperlite Mountain Gear Southwest 40L Backpack vs Hyperlite Mountain Gear Windrider 40
Weight and specs compared for 2026 — and which one to choose.
Fully waterproof Dyneema Composite Hybrid pack with aluminum stays and foam back panel. Built for off-trail use in harsh conditions. 29.7 oz.
Check price Full details →100% waterproof Dyneema pack with sewn-through back panel and internal frame stay. 40L volume, three exterior mesh pockets for wet gear.
Check price Full details →Hyperlite Mountain Gear Southwest 40L Backpack vs Hyperlite Mountain Gear Windrider 40: which should you buy?
If saving weight is your priority, the Hyperlite Mountain Gear Southwest 40L Backpack wins — at 841 g it is 3 g (0%) lighter than the Hyperlite Mountain Gear Windrider 40 (844 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 backpack page, or browse the full gear weight database.