How to Waterproof Your NOMATIC Bag for Rainy Travel

NOMATIC bags are built for travel, but even the most durable materials need a little help when the skies open up. Whether you're commuting through a downpour or hiking in wet conditions, knowing how to waterproof your NOMATIC bag can save your electronics, clothes, and the bag itself. This guide covers practical, effective methods to keep your bag and its contents dry.

Before diving into techniques, it helps to understand that most NOMATIC bags use water-resistant fabrics like nylon or polyester with a DWR (durable water repellent) coating. Over time, that coating wears off. The good news is you can restore or enhance water resistance with simple products and habits.

Restore DWR Coating with a Spray-On Treatment

The easiest way to boost your bag's water resistance is to reapply a DWR spray. Products like Nikwax TX.Direct or Grangers Performance Repel are designed for outdoor gear and work well on nylon and polyester. Clean your bag first, then spray an even coat over the exterior, focusing on seams and high-wear areas. Let it dry for 24 hours. This treatment is ideal for bags like the Luma Camera Pack 18L or the Navigator RS Pack 15L, which already have a DWR finish but need a refresh after months of use.

DWR sprays are safe for most fabrics and won't affect breathability. They work by causing water to bead up and roll off rather than soaking in. For best results, apply the spray in a well-ventilated area and avoid over-saturating. You may need to reapply every few months depending on how often you use the bag in rain.

• Always test the spray on a small hidden area first to check for discoloration.

Seal Seams and Zippers for Extra Protection

Water often finds its way through seams and zippers. Seam sealer (like Seam Grip) can be applied to stitched seams on the inside of your bag. For zippers, consider using a wax-based zipper lubricant that also adds a water-repellent barrier. Alternatively, you can apply a thin layer of clear nail polish to the zipper tape (not the teeth) to help shed water. This is especially useful for bags you carry in heavy rain, such as the McKinnon Camera Pack 25L, where protecting camera gear is critical.

Another option is to use a seam tape or a waterproof patch kit for any worn areas. While NOMATIC bags have taped seams in many models, adding an extra layer of sealant can give you peace of mind during extended wet-weather trips. Just be careful not to apply too much, as it can stiffen the fabric.

• Focus on the bottom corners and side seams, where water pools when the bag sits on wet ground.

Use a Rain Cover for Heavy Downpours

For prolonged or heavy rain, a dedicated rain cover is the most reliable solution. Many NOMATIC backpacks have a built-in rain cover pocket, but if yours doesn't, you can buy a universal cover that fits over the entire bag. A cover prevents water from saturating the fabric and adds a layer of insulation. It's a smart addition for travelers who expect to be caught in storms, especially when carrying sensitive gear like cameras or laptops.

Rain covers are lightweight and pack into their own pouch, so they don't add bulk. When not in use, store the cover in an exterior pocket for quick access. For sling bags like the Navigator RS Sling 10L, a small rain cover designed for daypacks works well. Remember to remove the cover when the rain stops to allow the bag to dry out and prevent mold.

• Look for a rain cover with a reflective strip for added visibility in low light.

Dry Your Bag Properly After Wet Use

Even with waterproofing, your bag may get damp inside from condensation or wet items. After a rainy day, empty the bag completely, open all zippers, and let it air dry in a well-ventilated area away from direct heat. Stuff the bag with dry towels or newspaper to absorb moisture from the interior. Never use a hair dryer or radiator, as high heat can damage the DWR coating and fabric.

Regular drying prevents mildew and odors. For bags with removable foam padding (like camera inserts), take those out and dry them separately. This routine keeps your NOMATIC bag fresh and extends its lifespan, especially if you travel frequently in wet climates.

• Add a silica gel packet to the main compartment during storage to absorb residual moisture.

Waterproofing your NOMATIC bag doesn't have to be complicated. With a DWR spray, seam sealing, and a rain cover, you can confidently take your gear through any weather. For a bag that already excels in design and durability, adding these simple protections ensures it stays reliable for years. Check out the NOMATIC Luma Camera Pack 18L for a great travel companion that's easy to waterproof and perfect for photographers on the go.