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This is Arc'teryx's smallest Alpha FL pack, built for climbers who subscribe to the less-is-more philosophy. The Arc'teryx Alpha FL 20 Backpack combines Hadron AC² LCP fabric (that's Liquid Crystal Polymer for the nerds) with a minimalist 24-liter design perfect for summit pushes and streamlined alpine objectives. Lightly padded shoulder straps and a laminated back panel keep things comfortable, while the external bungee system compresses your load and secures crampons or an extra layer.
315d Hadron® AC² Nylon with Hadron® – Light, ultradurable, and waterproof.
Proprietary Hadron® Liquid Crystal Polymer Grid Fabric – Incredibly light and exceptionally durable.
FC0-DWR (Durable Water Repellent) Finish – Repels moisture and is PFAS-free.
57cm Length x 27cm Width x 18cm Depth
Internal Security Pocket
External WaterTight™ Zippered Pocket with Key Clip
Lightly Padded Thermoformed Shoulder Straps – Durable, light, and comfortable.
Thermoformed Back Panel – Provides support, structure, and a comfortable carry.
Six Integrated Front Lash Points – Let you customize external carry.
Bungee System – Compresses load and can carry crampons, ice tools, or a belay parka.
Glove-Friendly Drawcord Main Compartment with Webbing Pull Tabs
Extension Skirt Expands Capacity
Top Strap Secures a Rope
Dual Dog-Bone Tool Attachments
RECCO® Reflector – Aids search and rescue teams in emergency situations.
| Size | Regular |
| Weight (g) | 600 |
| Volume (L) (L) | 24 |