Spin Bag 18L

Yes. The Spin Bag 18L is 100% waterproof throughout the bag, built with heat-welded seams and no stitching holes. The rolltop closure can be rolled on the sides for everyday commute mode or folded dry-bag style for the full waterproof seal in heavy weather. The front pocket sits beneath a welded waterproof storm flap with a YKK zipper for splash protection; the back-panel passport pocket is the one zone that is not waterproof and is intended for items kept against your body.

The Spin Bag 18L fits up to a 16-inch laptop in a padded sleeve against the back panel measuring 27 × 38 cm. A slimmer padded sleeve sits next to it for a tablet, iPad, or slim folder, and a YKK-zipped interior pocket on the inside wall holds chargers, cables, and small items.

Yes. The Spin Bag 18L has two vertical MOLLE strips on the back panel that accept the Waist Pocket Belt, which locks the pack to your hips for a stable run-commute carry; remove the belt and it carries like a waterproof daypack on the bike or on foot. Contoured shoulder straps, a sternum strap, and a sculpted padded back panel keep the 18-liter load stable across runs, rides, and walks.

The Spin Bag 18L has a single waterproof main compartment containing a padded 16-inch laptop sleeve against the back panel, a slimmer padded tablet sleeve alongside, a YKK-zipped interior pocket on the inside wall, and a tethered S-Biner key keeper clip. Externally there is a front pocket with a YKK zipper under a welded storm flap and a back-panel passport pocket with a YKK zipper sitting closest to your body for passport, wallet, or boarding pass.

Yes. The Spin Bag 18L has a MOLLE-compatible back panel that accepts these accessories externally: Space Bag (+9 L expansion), Waist Pocket Belt, Minimal Belt, MOLLE Strap System, the Large cube of the Packing Cubes Set, Carabiners, and Reflective Strings. The Packing Organizers Set, Quick-dry Towel, and Garment Bag are also compatible with the Spin Bag 18L but live inside the main compartment rather than attaching externally. A reflective bungee is lashed across the outside of the bag for clipping on shoes or a helmet when the main compartment is full.

Kilometer backpacks are designed specifically for run-commuters. Every bag features a modular system that lets you customize your setup with accessories, and our materials are chosen to handle sweat, rain, and daily abuse while still looking sharp at the office.

Most of our backpacks use a MOLLE-compatible attachment system. Accessories like the Space Bag, Waist Pocket Belt, and Bottle Holder work across the MOLLE-equipped lineup (Spin Bag 30L, Spin Bag 18L, Everyday Rolltop, Pannier Rolltop, and Backpack Pro 16). The Trail Pack and Packable Rolltop are minimalist designs without MOLLE.

We offer a 30-day return policy on all unused products in original packaging. Custom kit bundles can be returned as a complete set. Shipping costs for returns are covered by the customer.

Yes. Kilometer Studios ships worldwide. International orders are accepted from every country our logistics partners can reach; shipping costs and delivery times vary by destination and are calculated at checkout.