Trail Pack

Yes. The Trail Pack uses a high-ride running vest harness with bunny loop adjustable sternum straps and size adjustment loops that lock the 14-liter load against the body for bounce-free carry at race pace. Two 500 ml soft flask pockets sit at chest level for instant hydration, an internal universal bladder fastener accepts up to 3 liters, and chest mesh pockets keep gels, phone, and key essentials accessible without breaking stride.

Yes. The Trail Pack has two dedicated front chest pockets sized for 500 ml soft flasks, positioned for natural drinking motion during movement. Soft flasks are sold separately. The pack also includes an internal hydration bladder fastener that secures bladders from any manufacturer for higher-volume hydration up to 3 liters.

Yes. The Trail Pack fits up to a 15-inch laptop in an internal padded sleeve measuring 25 × 33 centimeters inside the rolltop main compartment. For 16-inch laptops, see the Backpack Pro 16, Spin Bag 18L, or Everyday Rolltop.

Yes. The Trail Pack is a hybrid running vest and commuter pack: the same 14-liter body that carries hydration and trail kit on the weekend carries a 15-inch laptop, change of clothes, and daily essentials on the way to work. The rolltop closure compresses or expands to match load, the external stuff pocket holds a jacket or shoes without opening the main compartment, and the vest-style harness stays stable whether walking, cycling, or running.

The Trail Pack ships in one unisex size with a vest-style harness sized to hug the torso. Bunny loop sternum straps, size adjustment loops, and elastic sidechain compression dial the fit in for varying layers and load. The vest cut is built for snug, body-following carry, so customers between sizes or with broader torso profiles should review measurements before ordering.

No. The Trail Pack is not waterproof. The polyester mesh back panel and 75D recycled nylon shell are built around breathability for high-output trail running and warm commutes. For heavy weather, the Kilometer Studios Rain Cover is available as a separate accessory that slips over the pack. For 100% waterproof carry, see the Spin Bag 18L, Spin Bag 30L, or Everyday Rolltop.

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.

Yes. All our backpacks use the same MOLLE-compatible attachment system. Accessories like the Space Bag, Waist Pocket Belt, and Bottle Holder work across the entire range.

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.