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Comparison illustration of a thin document folder beside a thick binder

Slim or deeper briefcase: compare L and AA by your load's thickness

Some days call for a neat, slim briefcase; others bring chargers and extra papers. Even for the same job, the depth you need can vary.

Start with L for mainly slim documents, or AA for bulkier belongings too. AA has differing published measurements, which we explain below so you can check the dimensions you need.

Read listed depth and weight without confusing them

L measures 34×5×26cm externally and weighs 1kg. AA's description gives 35cm wide × 11cm deep × 26cm high, while its size image gives 35cm wide × 10cm deep × 27cm high. If you know what you want to put in AA, ask before ordering with those measurements.

AA weighs about 1.5 kg. Although it offers potentially more depth, the empty bag is heavier before adding belongings. Whether you carry thick items daily or only occasionally changes the decision.

COWMONO JOURNAL

Listed depth and differences to clarify

L
External: 34×5×26 cm · 1 kg
AA depth
Text: 11 cm / image: 10 cm
Basis for choosing
Load thickness and carrying frequency

To see the candidate specifications first, start with Briefcase / Business Bag L dimensions and interior, Briefcase / Business Bag AA dimensions and interior.

Check fit using combined stacked thickness

Lay out your laptop case, charger pouch and folders and decide what will overlap. Gusset depth is an external measurement, not entirely usable internal space.

AA lists laptop storage and zipped pockets. Dividers can be useful but may limit where bulky items fit, so inspect opening and main-compartment photos before confirming.

Check two options against your requirements

Officially listed information for the two options
What to check Briefcase / Business Bag L Briefcase / Business Bag AA
Listed external dimensions 34 × 5 × 26 cm (as listed) Description: W35 × D11 × H26 cm; size image: W35 × D10 × H27 cm. Confirm the discrepancy.
Listed weight 1 kg Approximately 1.5 kg
Material Genuine cowhide (crazy horse leather) Cowhide (crazy horse leather)
Storage, accessories and other details Slim shape; check internal dimensions and usable opening Laptop storage and assorted pockets; removable shoulder belt
Listed price (including tax) JPY 21,000 JPY 28,000

Considering Briefcase / Business Bag L

Product photo of Crazy Horse Leather Briefcase / Business Bag_L

Crazy Horse Leather Briefcase / Business Bag L

L has an external depth of 5cm. It is a briefcase for keeping belongings simple and enjoying a slim silhouette. Lay out your usual tools to see whether the charger can sit without pressing on the laptop.

View Briefcase / Business Bag L dimensions, storage photos and current availability

Considering Briefcase / Business Bag AA

Product photo of Crazy Horse Leather Briefcase / Business Bag_AA

Crazy Horse Leather Briefcase / Business Bag AA

AA includes a detachable shoulder belt, allowing hand or shoulder carry according to walking distance. The description and size image give different measurements; ask about the height and depth you need before ordering.

View Briefcase / Business Bag AA dimensions, storage photos and current availability

Assess suitability and ask before buying

Choose L when you can keep your essentials slim, or consider AA when thicker items need a place. Check your laptop's actual dimensions with its protective case and choose the one that makes morning packing feel straightforward.

COWMONO JOURNAL

Measuring stacked papers and cases

  1. Measure your usual load thickness
  2. Clarify AA's dimension discrepancy
  3. Add bag and contents weights

Shopping with cowmono

Shipping within Japan is free. For returns because the look or size is not right, return shipping is free when you contact us within seven days of delivery (conditions apply). Delivery information · Returns.

About the author

Author: Yama (Cowmono Owner)

About: Experienced in sales and marketing at Japanese and international apparel companies, with a strong interest in fashion, sports, the outdoors and subcultures.

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