The updated M4 pack is perfectly profiled for technical alpinism where climbers use the same pack for the approach and the climb. The removable waist belt padding is comfortable on the approach, then strips down to nothing for technical climbing with a harness. The front panel is constructed from tough 600D Ripstop Polyester for strength and durability and the side panels are constructed from lightweight 100D Mini-Ripstop nylon with a waterproof coating for light weight and compressibility. The exclusive Backdoor system allows access to contents of the pack without having to remove everything on top before gaining access to gear at the bottom. Comfort is assured by the ventilated mesh padding on the back, and breathable, ergonomic shoulder straps with load adjustment systems. The waist belt and chest strap feature the exclusive EZ OP buckles which can be opened with one hand; a feature that is especially useful when wearing gloves. Additional technical features include mesh pockets on the waist and shoulder straps, an external helmet carrying system that hides away when not in use, 2 ice axe carriers designed for use with modern tools, holders for trekking poles, lateral ski holders, and rope carrying straps.

Clothing / Packs / Accessories 275

M4

The updated M4 pack is perfectly profiled for technical alpinism where climbers use the same pack for the approach and the climb. The removable waist belt padding is comfortable on the approach, then strips down to nothing for technical climbing with a harness. The front panel is constructed from tough 600D Ripstop Polyester for strength and durability and the side panels are constructed from lightweight 100D Mini-Ripstop nylon with a waterproof coating for light weight and compressibility. The exclusive Backdoor system allows access to contents of the pack without having to remove everything on top before gaining access to gear at the bottom. Comfort is assured by the ventilated mesh padding on the back, and breathable, ergonomic shoulder straps with load adjustment systems. The waist belt and chest strap feature the exclusive EZ OP buckles which can be opened with one hand; a feature that is especially useful when wearing gloves. Additional technical features include mesh pockets on the waist and shoulder straps, an external helmet carrying system that hides away when not in use, 2 ice axe carriers designed for use with modern tools, holders for trekking poles, lateral ski holders, and rope carrying straps.

275

Back Door accessVentilated mesh padding on the back and shoulder straps for comfortStrong 3 mm steel wire frame staysErgonomic shoulder straps with load adjustment and mesh pockets for snacks and accessoriesRemovable waist belt padding for technical climbingWaist belt and chest strap feature exclusive EZOP bucklesHydration compatible2 front ice axes carriersRope carrying strapsExternal helmet carrying system hides away when not in useFixed lid with 2 zippered pocketsAvailable in 2 color

Ref. Model Size Weight Rated to Dimensions Material Applications
g kg
The updated M4 pack is perfectly profiled for technical alpinism where climbers use the same pack for the approach and the climb. The removable waist belt padding is comfortable on the approach, then strips down to nothing for technical climbing with a harness. The front panel is constructed from tough 600D Ripstop Polyester for strength and durability and the side panels are constructed from lightweight 100D Mini-Ripstop nylon with a waterproof coating for light weight and compressibility. The exclusive Backdoor system allows access to contents of the pack without having to remove everything on top before gaining access to gear at the bottom. Comfort is assured by the ventilated mesh padding on the back, and breathable, ergonomic shoulder straps with load adjustment systems. The waist belt and chest strap feature the exclusive EZ OP buckles which can be opened with one hand; a feature that is especially useful when wearing gloves. Additional technical features include mesh pockets on the waist and shoulder straps, an external helmet carrying system that hides away when not in use, 2 ice axe carriers designed for use with modern tools, holders for trekking poles, lateral ski holders, and rope carrying straps. 275 40L 1kg
       
       
       
Ref. The updated M4 pack is perfectly profiled for technical alpinism where climbers use the same pack for the approach and the climb. The removable waist belt padding is comfortable on the approach, then strips down to nothing for technical climbing with a harness. The front panel is constructed from tough 600D Ripstop Polyester for strength and durability and the side panels are constructed from lightweight 100D Mini-Ripstop nylon with a waterproof coating for light weight and compressibility. The exclusive Backdoor system allows access to contents of the pack without having to remove everything on top before gaining access to gear at the bottom. Comfort is assured by the ventilated mesh padding on the back, and breathable, ergonomic shoulder straps with load adjustment systems. The waist belt and chest strap feature the exclusive EZ OP buckles which can be opened with one hand; a feature that is especially useful when wearing gloves. Additional technical features include mesh pockets on the waist and shoulder straps, an external helmet carrying system that hides away when not in use, 2 ice axe carriers designed for use with modern tools, holders for trekking poles, lateral ski holders, and rope carrying straps.
Model 275
Size 40L
Weight 1kg
Rated to
Dimensions
Material
Applications
       
       
       
  • Back Door access
  • Ventilated mesh padding on the back and shoulder straps for comfort
  • Strong 3 mm steel wire frame stays
  • Ergonomic shoulder straps with load adjustment and mesh pockets for snacks and accessories
  • Removable waist belt padding for technical climbing
  • Waist belt and chest strap feature exclusive EZ
  • OP buckles
  • Hydration compatible
  • 2 front ice axes carriers
  • Rope carrying straps
  • External helmet carrying system hides away when not in use
  • Fixed lid with 2 zippered pockets
  • Available in 2 colors
...
  • Back Door access
  • Ventilated mesh padding on the back and shoulder straps for comfort
  • Strong 3 mm steel wire frame stays
  • Ergonomic shoulder straps with load adjustment and mesh pockets for snacks and accessories
  • Removable waist belt padding for technical climbing
  • Waist belt and chest strap feature exclusive EZ
  • OP buckles
  • Hydration compatible
  • 2 front ice axes carriers
  • Rope carrying straps
  • External helmet carrying system hides away when not in use
  • Fixed lid with 2 zippered pockets
  • Available in 2 colors