Mammut Sender Chalk Bag
Best ultralight chalk bag for competitive climbers and deep-water soloists.
Built for the world's most demanding climbers, this bag prioritizes extreme weight reduction above all else. It is a minimalist tool designed to disappear while you climb, ensuring nothing gets in the way of your next send.
$35.00
at
OpticsPlanet
Who it's for
- Performance climbers prioritizing weight savings on long, demanding routes
- Athletes needing fast, reliable chalk access during difficult cruxes
- Climbers wanting a secure, spill-proof bag for transport
Who should skip it
- Climbers who frequently scrape against rough, abrasive rock faces
- Multi-pitch climbers needing large chalk capacity for long days
- Organized climbers who require storage for keys, tape, or brushes
Performance breakdown
Weight Efficiency
Minimalist construction makes this virtually unnoticeable during high-intensity sends.
Access Speed
Wide, reinforced opening ensures chalking up happens in a split second.
Drying Performance
Fleeceless interior sheds moisture rapidly, perfect for humid or water-based climbing.
Sustainability Standards
Leading the pack with bluesign certification and recycled material construction.
Durability
Reinforced base handles abrasive rock contact without adding unnecessary bulk.
Ergonomic Design
Streamlined shape stays out of the way during complex, technical movements.
Key Specs
Material
100% Polyester
Interior
Fleeceless
Height
18.0 cm
Width
14.5 cm
Base
Reinforced
bluesign® certified
PFC-free DWR treated
Fair Wear certified
Recycled materials
Know before you buy
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