Carry-on Backpack T-class® B25, Black

Product detailed description

T-class® B25 black underseat backpack – practical 40 × 30 × 20 cm carry-on

The black T-class® B25 underseat backpack combines a compact travel format with thoughtful organisation for business trips, weekend breaks and everyday commuting. Its versatile appearance is supported by a separate laptop compartment, expansion section, USB-A connection and several secure pockets.

Carry it on your back, lift it by the top handle or slide the rear strap over a suitcase’s telescopic handle. Documents, electronics, clothing and travel essentials can remain neatly organised in one practical carry-on backpack.

🦾 Water-resistant TPU with a professional finish

The B25 is made from TPU, or thermoplastic polyurethane. This flexible and durable material helps the backpack cope with regular wear, scuffs and frequent travel, while its water-resistant construction contributes to protecting the contents in changeable weather.

The subtly patterned surface is easy to maintain. Its black finish looks clean and professional, pairing naturally with business clothing, travel equipment and an everyday urban wardrobe.

✈️ Underseat backpack for Ryanair and Wizz Air

The 40 × 30 × 20 cm / 15.7 × 11.8 × 7.9 in format is a popular choice for low-cost airlines such as Ryanair and Wizz Air. It can be used as an underseat bag, but always check the current allowance for your particular flight and fare before travelling.

A zippered expansion section increases the packing space when required. The backpack therefore adapts easily to a business trip, a weekend away or the journey home with extra belongings.

🎯 30-litre capacity and organised storage

The main compartment has room for clothing, shoes and other travel essentials. Crossed packing straps help keep the contents in place, while a zippered mesh pocket separates smaller items from the rest of your gear.

A dedicated laptop section is complemented by organisers for documents, electronics and charging accessories. This makes it quicker to reach important items during airport checks, work sessions and transfers.

🔌 USB-A connection and quick-access pockets

The external USB-A port connects to your own power bank stored inside the backpack. You can charge your phone while waiting at the airport or moving through the city without opening the main compartment.

Two front pockets keep documents, headphones, cables and other small items close at hand. A side pocket is useful for a bottle or anything you want to reach without unpacking the bag.

✋ Comfortable carrying and easier transfers

Padded shoulder straps and a cushioned back panel improve comfort on longer walks. The chest strap helps stabilise the backpack and distribute its weight more evenly while you move.

The top handle makes the bag easier to lift when boarding a plane, train or car. Its rear luggage strap fits over the telescopic handle of a suitcase, allowing both bags to move together.

🔒 Secure pockets and water-resistant zippers

A concealed rear pocket provides discreet storage for travel documents, a wallet or other personal belongings. A smaller pocket on the shoulder strap keeps a card or another frequently used item within easy reach.

Water-resistant zippers complement the TPU construction and help provide added protection for the contents when travelling in unsettled weather.

💡 Additional information

The T-class® B25 works as a business laptop backpack, an expandable cabin bag or a practical commuter backpack. The black colour and organised interior make it easy to separate work equipment from clothing and personal items.

📖 Useful information before you fly

Before departure, see our guide to airline baggage dimensions for help understanding cabin and personal-item limits.

🧳 T-class® – a Czech travel luggage brand

T-class® is a Czech brand focused on practical luggage for different styles of travel. Learn more about its products and range on the T-class® brand page.