OS2O FAST&LIGHT
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SPEEDPACK Trail Vest 5L

The SPEEDPACK 5L vest represents an advanced interpretation of the FAST&LIGHT philosophy, shaped by years of experience in trail running and technical gear design. Its lightweight construction, adaptability, and well-thought-out pocket system make it an ideal choice for high-intensity races and training sessions where every second matters.

Made with high-performance porous technical fabric, it is lightweight, breathable, and highly adaptable to the body, offering a natural fit without restricting freedom of movement. The shoulder straps feature strategically placed pockets to carry essential items without compromising balance or comfort.

The pocket layout is optimized for quick access during activity, minimizing interruptions and improving race efficiency. The vest also features the FlexControl System, a customizable front adjustment system that allows precise control of tension, placement, and number of anchor points, adapting to the runner’s body and terrain. Designed for both competition and training, it is ideal for short to mid-distance races, delivering capacity, functionality, and stability in a minimalist, ultralight format.


FAST&LIGHT - 162g (XS)

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€99.90
Colour
Talla
Quantity

Activity

Trail Running

Equipment

YKK® zippers for durability and smooth performance

Multiple point front closure with adjustable FlexControl System

Two separate compartments in the main rear pocket

Inner pocket with water-resistant lining

Integrated whistle with its own quick-access pocket

Flask pockets on shoulder straps, compatible with 300–500 ml, with securing elastic

Lower front zip pockets with YKK® zippers

Upper shoulder zip pocket with YKK® zipper

Elastic side pockets for quick access

FAST&LIGHT pop-up pocket for jacket access without removing vest

Dual pole carry system: front-lateral and lower-rear positions with elastic and stoppers

Compatible with Speedpack Poles Bag

Large rear pocket with YKK® zipper

360° reflective detailing

Storage bag with elastic cord and 5 extra stoppers for repairs

Includes two 500 ml soft flasks

Technology

FASTGRID

87% Polyamide, 13% Elastane, high-performance 40 Denier yarn in a micro-perforated mesh structure of 70 g/m². Ideal for FAST&LIGHT activities in medium to high temperatures, where lightness, adaptability, durability, and ventilation are essential.

FLEXCONTROL SYSTEM

FlexControl System is an adjustable front closure system that allows customization of tension, anchor placement, and number of straps depending on the runner’s body and activity type. It provides a secure, bounce-free fit even under intense movement. The straps can be repositioned vertically across the chest and configured in multiple layouts (double/triple triangle, parallel lines, etc.) to adapt to the runner’s anatomy and performance demands.

Weight

Size XS – 162 g

Size S/M – 170 g

Size L/XL – 174 g

Sizes

Measure chest circumference at its widest point 

Due to differences in body morphology, intended use, and the high adjustability of the FlexControl System, sizing perception for Speedpack vests can vary significantly. It is recommended to adjust the straps with the usual load to ensure a precise and functional fit.

XS – 72–83 cm

S/M – 90–103 cm

L/XL – 100–113 cm

Maintenance

Information about care and maintenance

Specific References

EAN13
8435422229401