MOSISO 3 in 1 Messenger Bag for Men, 15.6 inch Computer Laptop Bag Convertible Laptop Backpack for Work Business Travel, Crossbody Satchel Briefcase Shoulder Bags Handbag Bookbag for College

$46.99 USD

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Biodegradation

10% of your purchase goes to environmental groups supporting plastic & fabric biodegradation projects.

MOSISO messenger bag backpack

MOSISO Vintage Brown 3-in-1 Convertible Laptop Briefcase

Versatile men’s polyester bag switches between backpack, crossbody messenger and handheld briefcase in seconds. Padded dedicated laptop compartment plus layered pockets satisfy office, school and business travel storage demands.

💻 Wide Device Compatibility

Fits MacBook Pro 15/16, Surface 15 and all mainstream 15.6-inch Windows notebooks. Spacious inner space holds laptop and 12.9-inch tablet simultaneously without squeezing.

🛡️ Shockproof Padded Interior

Thick foam sleeve wraps laptop to buffer bumps and avoid surface scratches. Smooth dual metal zippers enable full opening for quick access to all internal belongings. Stain-resistant woven polyester withstands daily dust and minor splashes.

📂 Multi-Tier Classified Storage

Front dual zipper pockets + outer snap pocket store phones, wallets, keys and stationery separately. Inner file divider and small mesh slots organize chargers, mouse and documents neatly without tangling. Large main compartment holds folders and daily work supplies.

🎒 3-Way Convertible Carry System

Hidden retractable backpack straps tuck flat when unused for a clean briefcase look. Removable padded shoulder strap adjusts 28.54–52.26 inch for crossbody wear. Reinforced PU top handles offer comfy short-distance handheld transport.

🧵 Sturdy Vintage Craft Details

Solid brown textured polyester delivers timeless business casual styling. Heavy-duty metal buckles and dense edge stitching prevent wear after long-term daily use. Slim structured silhouette avoids bulky appearance even when fully loaded.

Core Product Specs

Inner Size:16.14×11.81×3.93 inch | Outer Size:16.73×12.40×3.93 inch

Material: Durable woven polyester, shock-absorbing foam, soft anti-scratch lining

Core Advantages: 3 convertible carry modes, hidden backpack straps, multi-layer storage, dual zipper design

Applicable Scenarios

Perfect for office work, college campus, short business trips and weekend outdoor outings.

Simple Care Guide

Wipe surface dirt with soft damp cloth; avoid alcohol to protect fabric texture and color. Air flat to dry, machine washing and high-temperature ironing are prohibited.

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🚚 United States, Japan, Malaysia, Poland, Singapore, South Korea, Spain: Free shipping. U.S. orders ship same day (excluding weekends) and are delivered within five days.

🏭 For orders from other countries, enter your address at checkout to get real-time, accurate shipping rates and estimated delivery times. Orders to the United States are shipped from our US warehouse; all other countries/regions ship from China.

📝 Depending on your country's customs policies and regulations, you may be subject to import duties, taxes, and related charges. These fees are the customer's responsibility and not included in the product price or shipping cost. We recommend checking with your local customs office for details before ordering.

Attention: Please find the model number of your MacBook before your purchase! It is located at the bottom of your MacBook, starting with Letter "A", followed by 4 digit numbers, like "Axxxx".

Compatible Model:

A3241 --- MacBook Air 15.3 inch M4 2025

A3114 --- MacBook Air 15.3 inch M3 2024

A2941 --- MacBook Air 15.3 inch M2 2023

A3240 --- MacBook Air 13.6 inch M4 2025

A3113 --- MacBook Air 13.6 inch M3 2024

A2681 --- MacBook Air 13.6 inch M2 2022

A3403 A3186 --- MacBook Pro 16 inch M4 2024

A2991 --- MacBook Pro 16 inch M3 2023

A2780 --- MacBook Pro 16 inch M2 2023

A2485 --- MacBook Pro 16 inch M1 2021

A2141 --- MacBook Pro 16 inch 2019