Hyperlite Mountain Gear Pemi 15
The Pemi 15 boldly takes the lead in the evolution of performance fastpacking. It's a low-volume hybrid running vest that combines our optimal balance of weight and durability with a significant step forward in water resistance, courtesy of ALUULA 97 and Thermo-welding technology. It's a no-compromise solution for long, demanding days where freedom of movement and gear accessibility are non-negotiable. Whether you're tackling ultramarathons with extended water carries, navigating mountain terrain with an ice axe in tow, or simply seeking a low-volume, high-performance vest that thrives in all conditions, this is your ticket to the podium, whether there are cheering crowds or no crowd at all.
KEY FEATURES
- Full connection vest harness keeps center of gravity close and limits pack bounce. Features a highly breathable air mesh for maximum comfort
- ALUULA 97 features an UHMWPE ALUULA Core, providing a balance of durability, weight, water protection, and next generation welding technology.
- Welded foam back panel contours to the wearer's back and provides the necessary structure for comfortably carrying the additional weight required for longer days and fringe conditions
Materials
ALUULA 97 features an UHMWPE Aluula Core, providing a balance of durability, weight, water protection, and next generation welding technology.
Capacity
15L capacity for extra equipment and layers needed for long days.
Shoulder Straps
Full connection vest harness keeps center of gravity close and limits pack bounce. Features a highly breathable air mesh for maximum comfort.
Back Panel
Welded foam back panel contours to the wearer's back and provides the necessary structure for comfortably carrying the additional weight required for longer days and fringe conditions.
Hydration System
Hydration bladder compatible back panel allows for threading the hydration hose throughout the vest, maximizing running efficiency. Bladder compartment is entirely outside of the pack, providing additional protection to the inside of the pack.
External Carry
Vest harness features multiple pockets: 2 flask pockets, 2 front swoop pockets, 2 zippered pockets, 2 side swoop pockets, and an adjustable sternum system. A low-profile whistle integrated into the wearer's right flask pocket adds easy-access safety utility.
External Pockets
A durable UWMHPE stretch mesh front pocket provides quick, secure storage for wet layers, complemented by full-length, low-profile daisy chains that offer limitless lashing options for your external gear.
Access
#5 YKK Side Zipper features two sliders for rapid access to contents of the pack.
Top Closure
Roll-top closure system with vertical compression straps allows you to adjust the pack's volume, keeping the load compact, stable and protected from weather.
Top Compression Straps
Removable over the top strap mates to a welded UHMWPE webbing loop for additional compression or storage.
Side Straps
Two removable corded hooks provide on-the-go pole storage on the underside of the pack. Vertical pole carry compressions straps also provide an efficient way to store an ice axe.
Hyperlite Mountain Gear Pemi 15
Average weight based on size medium
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Material
ALUULA 97, Breathable Air Mesh, UHMWPE Stretch Mesh, Lycra Stretch Mesh
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Volume
15L
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Weight
12.4 oz | 352 g
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Back Width
8.25 in | 21 cm
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Height
23 in | 58.4 cm
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Top Circumference
23.75 in | 60.3 cm
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Bottom Circumference
19 in | 48.3 cm
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Country
Mexico
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PEMI 15: FIT & SIZING
FIT OVERVIEW
The Pemi 15 is sized by chest circumference, not torso length. A snug, wrap-around fit is essential to limit bounce while running. Because the vest has minimal stretch (aside from the front shock cord), finding the right size depends on your build:
- Athletic/Alpine Build: If you have a larger chest that tapers toward a narrower waist, erring toward the smaller size for your chest measurement may result in a more comfortable fit.
- Straight Build: If there is less discrepancy between your chest and waist, the larger size option may be better.
- Preference: If you prefer a relaxed fit or plan to wear more layers, we recommend sizing up.
SIZE CHART
SIZE CHEST (IN) CHEST (CM) S 34 - 38 86 - 97 M 38 - 40 97 - 102 L 40 - 42 102 - 107 XL 42 - 44 107 - 112 HOW TO MEASURE
Widest Point: Measure around the fullest part of your chest.
Wrap it Around: Keep tape level under armpits and across shoulder blades.
Check the Fit: Take measurement while breathing normally.
Layer Up: Measure while wearing the layers you intend to run in.


