Tom Bihn Synapse

The Synapse 25 does not have a dedicated, padded laptop compartment built into the back panel. Instead, it features modular attachment points inside the main compartment designed to secure a separate Tom Bihn laptop sleeve, which protects devices up to 16 inches.

Yes, the centered water bottle pocket is a signature design feature that keeps the weight of your bottle balanced directly against your back. It comfortably fits most standard-sized water bottles and prevents the lopsided feeling common with side-pocket designs.

Absolutely. At 25 liters with a relatively soft structure, the Synapse 25 is designed to slide easily under most standard airline seats, even when fully packed.

The nine internal O-rings are attachment points for Tom Bihn's organizational accessories, such as key straps, pouches, and wallets. They allow you to tether small essentials so they don't get lost at the bottom of the bag.

While it is built with durable, water-resistant materials that can handle light trail use, it is primarily designed as an everyday carry and travel bag. It includes a sternum strap and hip belt for stability, but it lacks the ventilation and specialized suspension systems found in dedicated hiking packs.

The five-pocket layout is designed to eliminate the 'black hole' effect of large main compartments. Each pocket is sized for specific items—like chargers, snacks, or sunglasses—allowing you to compartmentalize your gear so you can grab what you need without rummaging.