Alpha FL 20 Backpack Black
Mountaineering backpack - Unisex -
Home delivery from 21/09/2026
60 days to change your mind
No subject to promotional offersThe Alpha FL 20 Backpack Black is a climbing and mountaineering backpack from Arc'teryx with a capacity of 24 litres.
Designed to withstand the most demanding conditions, this pack combines a lightweight, ultra-durable, and waterproof fabric thanks to AC² (Advanced Composite Construction) technology with sealed seams. Its thermoformed back panel and lightly padded shoulder straps ensure optimal support and lasting comfort during your ascents. The Alpha FL 20 Backpack features six front attachment points and an elastic compression system to carry crampons, ice axes, or a belay parka, as well as two dedicated ice axe loops and a top strap for a rope.
Practical, it includes a secure internal pocket, an external WaterTight™ pocket with a key clip, and an expandable skirt to increase capacity. Its integrated RECCO® reflector aids rescue efforts in case of emergency. This robust and technical pack is the ideal companion for your mountain outings, combining performance and reliability.
- 24 L weather-resistant backpack
- Designed for rock, glacier and alpine climbing
- Lightweight, ultra-durable and waterproof fabric
- Thermoformed back panel
- Slightly padded thermoformed shoulder straps
- Pull-to-open/pull-to-close cord closure with webbing tabs, glove-compatible
- Internal pocket
- External WaterTight™ pocket with key clip
- Expandable skirt to increase capacity
- Six integrated front attachment points
- Elastic compression system for crampons, ice axes or belay parka
- Two ice axe loops
- Top strap for rope
- RECCO® reflector
- AC² (Advanced Composite Construction) technology with sealed seams and high water resistance
- bluesign® certified
Dimensions: 57 × 27 × 18 cm
Composition:
- Main fabric: Nylon Cordura 315D with Hadron® LCP and untwisted Vectran 400D technology, 240 g/m² - 86% Nylon, 14% Polyarylate
- Secondary fabric: Nylon Cordura 100D, 131 g/m² - 100% Nylon
- Padding: 100% Polyurethane
- Lining: 70D Ripstop Nylon - 100% Nylon
- FC0-DWR durable water-repellent finish
- No intentional addition of PFAS
| Hadron® LCP | Fabric technology developed by Arc'teryx that integrates Liquid Crystal Polymer (LCP) fibres into nylon to create an ultralight material, highly resistant to abrasion and tearing, with a characteristic embossed texture. |
| CORDURA® | Cordura® is the benchmark for textile reinforcement thanks to its dense weave. It is extremely resistant to wear, abrasion and cutting. Ideal for intensive outdoor activities. Its robustness means it is used for large-volume bags or as reinforcement on textile parts. |
| BLUESIGN® | The bluesign® system is the solution for an environmentally responsible textile supply chain. It controls the use of harmful substances from the start of the manufacturing process and establishes and enforces standards for safe and eco-friendly production. |
| FC0-DWR | Durable water-repellent treatment without fluorinated compounds, promoting water beading on the fabric surface while limiting absorption. |
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