Choosing the right size dry bag depends on three core factors: usage scenario, items to store, and portability needs—avoiding too-small limitations or too-large bulk. As a professional luggage factory, we go a step further: we tailor dry bags to your exact size and functional needs, ensuring perfect alignment with your use cases. ​ First, match the size to your activity—then let us customize. For short trips (day hikes, kayaking, beach outings), 5–10L dry bags fit essentials (phone, wallet, towel) and can be customized with your preferred attachment styles (backpack clips, belt loops) or brand logos. For overnight camping/multi-day river trips, 20–30L options hold sleeping bags and clothes; we can adjust compartment layouts (e.g., add internal mesh pockets for small gear) or reinforce handles for canoe transport. For family/surf trips, 40–60L bags work, and we offer custom colorways or waterproof fabric thicknesses (from lightweight for casual use to heavy-duty for extreme sports). ​ Second, calculate storage needs—we account for every detail. List your items (e.g., 2-person tents vs. single sleeping bags), and we add 10–20% extra space (factoring in waterproof seal compression) while customizing features like expandable sections (for souvenirs) or removable dividers (to separate wet/dry gear). No more compromising on storage—your bag is built for your belongings Finally, prioritize portability—we tailor carrying comfort. A 50L bag for group trips can get heavy, so we offer custom padded straps (adjustable length for different body types) or even convertible designs (from duffel-style to backpack-style). For solo users needing smaller bags, we can slim down dimensions without cutting storage, ensuring easy carrying.​ As a professional luggage factory, we don’t just sell dry bags—we create solutions. Whether you need bulk orders for outdoor brands, personalized bags for corporate gifts, or specialized designs for adventure companies, we customize size, function, and aesthetics to your exact requirements. Protect your belongings and stand out with a dry bag made just for you.​