While globalization has pushed almost all manufacturing companies out of San Francisco to the other side of the Pacific Ocean, popular bag-maker Timbuk2 prides itself on holding on to its small factory on Alabama Street in lower Potrero.

Founded by a bike-messenger 20 years ago, Timbuk2 corners the market on colorful, comfortable and versatile laptop bags, backpacks and carry-ons. While their main factories are located in China and the Philippines, custom-made bags designed by online shoppers are made in San Francisco and shipped within 24 hours (or so they promise).

Timbuk2’s Fall collection of messenger bags, which will be out at the end of summer, is different from its usual two-colored look and features single-panel floral and geometric designs.

But the company’s hottest new product – already out in stores – is the SF Urban Grid line, which is imprinted with the black-and-white street map of San Francisco. Running at $105-$155 depending on the size, the SF Urban Grid bags aren’t the cheapest, but for those times you get lost in the foggy upper Market, it will seem like a bargain.

If you want a limited edition bag, you gotta get it soon – Timbuk2’s special collections last only a season. And if you want to create a more personal look for your bag, just head to the Timbuk2 store at 506 Hayes Street and design your own.