Designed for climbing, to ski, snowshoeing or hiking .


1) UL Alpine pack finish: 200D Nylon Spectra or X-pac 21RC black or cloud grey, with cordura 500D bottom. (with double daisy chain option, front become black VX21(for X-pac finish) or cordura 500D (for Nylon Spectra finish)
2) Light Alpine pack finish:VX 21 full black  with cordura 500D bottom.
3) Light VX 21 Mix color, Black, Brown, Blue Navy and Grey (Specify combo by email in this case)  with cordura 500D (bottom).

Volume: adjustable from 30 to 45 L

Weight:  base from 425 g   X-pac 21RC  495 gr  VX 21 

  Standard Fit: 

- 2 ice axes loops .

- 4 side straps 20 mm (50 cm) to secure skis, snowshoes etc....

- 4 loops under the bag to secure the mattress, tent etc..

-Now 20 mm daisy chain included on shoulder strap for every packs by default

- An optional removable lid with 1 L zippered pocket   and 4 loops for crampons, rope, etc..(add 62 gr to 85 gr)
- Comfortable padded shoulder straps and padded hipbelt with 10 mm foam and inner 2mm 3D mesh

The padded part size is the same for every packs, the webbing strap length is adjusted for customer waist size.

 -Daisy chain on the front / bottom of the bag.(not possible with front pocket option)

- A sternum strap adjustable and removable 13 mm (add 10 gr) included.

- 2 optional belt straps 13mm X 50 cm to secure the equipment on top or on the daisy chain (add 10 gr)

- 2 removable belt pockets 2 x 1L (add 50 gr) in option.
- 2  optional straps on belt (add10 gr) to put snap and other (free option).
- Side pockets and front pocket in options.
- Possible changes in custom order please see option below and more. (KS Packs option are also available like frame set, internal pocket, dry bag top closure etc...)

Recommend total loads up to 12 kg .

4 torso sizes: 47 cm, 50 cm, 53 cm, 56 cm
Mesure your back (torso size) like this:
or measure your usual backpack to be sure, bottom of the pack up to start of shoulder strap.
or by default: for 1m68---> 47 cm, 1m74--> 50 cm, 1m80-->53cm, 1m86-->56 cm (For Asiatic people add 3 cm)
Intersect the result of 3 methods to be sure.
 Load lifter option is recommended for adjust your backpack torso lenght.  (Increases the length effect)

SIDE POCKETS (Enlarged since June 2018) ARE OPTIONAL, cordura 500D black by default.
 X-pac 21 Mix color, Black and brown option, side pockets option, daisy chain options.

Nylon Spectra + top lid + side pockets option 6 front loops options.
Top lid and front mesh option, 6 front loops option (VX 21 soft brown fabric)

Straps on belt (10 gr) to put snap and other (free option).
2 optional belt straps 13mm X 50 cm 

KS Packs option are also available like frame set, internal pocket, dry bag top closure, etc...

Torso size
Straps on belt
Belt Size (as your pants size)

(Fabric according to your pack)
Price: 3500 JPY

2 optional belt straps 13mm X 50 cm to secure the equipment on top or on the daisy chain (10 gr)

belt straps 13mm X 50 cm
20 mm webbing removable (height adjustable) air sternum strap with whistle add 8 gr from standard 13mm:
(13 mm webbing removable sternum strap by default)

20 mm sternum strap

Hole for hydration pipe (with inside hook) and water pouch pocket  options for 35 cm X 17 cm X 7cm size water pouch.
(This pocket is compatible with internal pad pocket option but not with internal pocket option.)

Placed at center, allow right or left pipe way out.

H2o Options

Pockets and cord lashing option :
 Options: 4 side pockets 1 front pocket and 6  front loops cord lashing, belt pockets
2 pockets add around 20 gr, front pocket 25 gr...

Back sit pad cord lashing
Front mesh option.

Alpisack options
Removable Waist belt pockets:

Size: 5X19X12/9 cm with waterproof zip and 1 key holder hook inside (one/pair).
Weight around:  24 gr LS07,  28 gr X21RC- 200D, 30gr VX07, 35 gr VX21

Localisation (if single pocket)
Fabric color

Load lifter strap  :
For frame less pack the load lifter system work well only when the pack is full.
Load lifter option is recommended for adjust your backpack torso lenght. (Increases the length effect)

 20 mm webbing strap 19 gr.

 Linelock and cord  5 gr

Sit Pad pockets pair:
(add around 15gr acc to fabric)
 For rectangle sit pad around 27x 50 cm .

Sit Pad pockets
Double 13 mm daisy chain option (instead of central one)
Material of front panel in this case = blackVX21 FIRM for toughness or 500D cordura Black for Nylon Spectra pack in PIC.

Price : 500 JPY

Large belt option 38 mm (instead of standard 25 mm) with Dual Adjust Side Release Buckle (add 20 gr):

Large belt 38 mm
Dual traction ice axe holder strap
(by default, standard fit only 2 long loops) 24 gr in cordura 500D:

Price : 1600 JPY
Cargo front pocket
Twice bigger than standard = 10 L.
 (elastic cord in option):

For Alpisack allow to put helmet, by default fit very strong mesh at the bottom to drain water (top border in dyneema not included, add 500 jpy).

Cargo pocket type: