Hyperlite Mountain Gear
Prism 40
Sold by the people who make it — no third-party seller in between.
Manufacturer list price (MSRP)
$450.00
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Overview
The Prism 40 is the ultimate pack for technical alpine ascents and ice climbing, perfectly blending weight, security, and comfort. Built with exclusive Dyneema® Woven Composite 5. 0, it’s designed to withstand the rigorous demands of ice climbing and mountaineering.
Specs
- Brand
- Hyperlite Mountain Gear
- Weight
- 981 g · 34.6 oz
- Torso length
- not published by the manufacturer
Weight vs. category
36% heavier than the category average.
How it measures up
Against every one of the backpacks in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
- Weight
- 2.16 lb (981 g)
- Lighter than 38% of 32 weighed · #20 lightest
- +20% vs the median 1.80 lb
- Price
- $450.00
- Cheaper than 4% of 75 priced · #71 cheapest
- +96% vs the median $229.99 · $13.00/oz (median $11.26/oz)
The lightest of the backpacks on record is Sea to Summit Ultra-Sil Daypack at 2.5 oz — 909 g less and $400.05 less.
The cheapest is Gossamer Gear RikSak at $45.00 — $405.00 less.
RidgeNote verdict
Similar — lighter or cheaper
Related reading
Which Hyperlite Mountain Gear Backpack Is Lightest in 2026?
RidgeNote ranks all seven Hyperlite Mountain Gear backpacks by maker-published weight, from 16.2 oz to 50.3 oz, to show what going lighter costs in ounces.
What's the Lightest Backpacking Backpack Worth Buying in 2026?
Compare 17 backpacking backpacks by maker-published weight, from 16.2 oz to 75.1 oz, with price per ounce and what each ounce saved costs.
What's the Lightest Ultralight Backpack to Buy in 2026?
RidgeNote ranks seven ultralight backpacks by maker-published weight, from 459 g up to 1092 g, and shows what each ounce saved costs against the shelf median.
Manufacturer list price (MSRP)
$450.00