Preorder the new 2026 Hyperlite Mountain Gear PEMI 15 Trail Running Pack (Ships when production is complete)

Pre-order: Production takes 2-3 months!

Please WhatsApp us to place an order.

"When moving long distances in the mountains, fluidity equals efficiency, equals speed." — Will P.

Lightweight design: Weighs only 12.8 oz (approx. 363 g)
Precisely fits chest size

Chest size reference:
S: 34-38 inches
M: 38-41 inches
L: 41-43 inches
XL: 43-46 inches

Product Introduction

The PEMI 15 redefines the standard for high-performance trail running packs. This low-volume hybrid running vest perfectly combines lightness with durability, and features revolutionary ALUULA 97 material and heat-welding technology, elevating waterproof performance to a new level. It is designed for long-distance challenges where extreme freedom of movement and easy access to gear are paramount. Whether you're facing an ultra-marathon requiring ample hydration, traversing technical terrain with an ice axe, or simply looking for a high-performance, low-volume vest that can handle all weather conditions, the PEMI 15 is your key partner on the podium—whether the finish line is met with cheering crowds or the silent wilderness.

Core Advantages

· Stable Fit System: The full-fit vest design keeps the center of gravity close to the body, effectively reducing pack bounce. Paired with highly breathable mesh, it offers ultimate comfort.
· Premium Material ALUULA 97: The core uses Ultra-High Molecular Weight Polyethylene (UHMWPE), achieving a perfect balance between durability, lightness, waterproofness, and advanced welding technology.
· Structured Back Panel: Made from welded foam material, it conforms to the back's curve, providing stable and comfortable support for extended periods of movement or for carrying extra gear needed in extreme environments.

Detailed Features

· Material Craftsmanship: Features ALUULA 97 (with UHMWPE core), combining lightness, strength, waterproofness, and cutting-edge welding technology.
· 15L Practical Capacity: Sufficient to hold spare clothing and extra gear for multi-day trips.
· Shoulder Strap System: Fully integrated vest design, stabilizing the center of gravity and reducing bounce. Highly breathable air mesh significantly enhances comfort during prolonged wear.
· Breathable Back Panel: Welded foam back panel conforms to the body, providing excellent support for carrying loads during long treks or in harsh weather.
· Hydration System: Hydration bladder compatible, with a dedicated routing channel for the drinking tube through the pack, improving running efficiency. The hydration sleeve is separate from the main compartment, keeping the pack's interior dry.
· External Storage: Abundant pockets: 2 soft flask pockets, 2 large front pockets, 2 zippered pockets, 2 side pockets, plus adjustable chest straps. The right soft flask pocket also integrates a lightweight emergency whistle for quick access to safety.
· External Expansion: The front features a durable UHMWPE stretch mesh pocket for quick storage of wet clothing; a full-length daisy chain offers infinite possibilities for external gear attachment.
· Quick Access: #5 YKK two-way side zipper allows instant access to items inside the pack.
· Roll-Top Closure: With vertical compression straps, the pack volume can be adjusted according to contents, ensuring a stable and compact load while enhancing protection.
· Top Compression Straps: Removable top straps connected to welded UHMWPE daisy chains provide additional compression or storage options.
· Side System: Two sets of removable bungee cord hooks allow trekking poles to be stored at the bottom of the pack while on the move. Vertical pole/axe compression straps can also efficiently secure an ice axe.

Detailed Specifications

· Material: ALUULA 97, breathable air mesh, UHMWPE stretch mesh, Lycra stretch mesh
· Capacity: 15 liters
· Back panel width: 8.25 inches / 21 cm
· Pack height: 23 inches / 58.4 cm
· Top circumference: 23.75 inches / 60.3 cm
· Bottom circumference: 19 inches / 48.3 cm
· Origin: Mexico