A 3.5L Crossbody That Keeps Up With Your Day The Topo Designs Block Bag is sized for the essentials — commutes, errands, travel days — without any unnecessary bulk. At 3.5L, it carries exactly what you need and nothing more, while a structured build keeps it looking sharp and holding its shape throughout the day. Dual front pockets put smaller items within reach so you're never digging around, and a zippered internal pocket keeps valuables tucked away. Lightweight enough for all-day wear, and made to hold up to daily use. Built from 100% recycled nylon — certified by the Global Recycled Standard and Bluesign approved — and assembled in a Fair Trade Certified factory. Heavy-duty YKK zippers and an adjustable webbing shoulder strap round out a bag that's thoughtfully constructed from the ground up. Small Bag, No Compromises 3.5L capacity sized for daily essentials without extra bulk. Dual front pockets, each with internal mesh pockets, for quick-access organization. Zippered internal pocket keeps cards, keys, or valuables secure. Structured build holds its shape over time and throughout the day. Adjustable webbing shoulder strap for a comfortable, customizable fit. Bottom compression straps keep the silhouette sleek when the bag isn't fully loaded. Heavy-duty YKK zippers for long-lasting reliability. Made from 100% recycled nylon — Global Recycled Standard certified and Bluesign approved. Produced in a Fair Trade Certified factory. Details Volume: 215 cu. in. / 3.5L Dimensions: 10.5"w × 7.5"h × 2.5"d Materials: 200D recycled nylon lightweight ripstop, 400D recycled nylon, 210D recycled nylon liner Closure: Heavy-duty YKK zippers Strap: Adjustable webbing shoulder strap Origin: Made in Vietnam