Waterproof Packing Cubes: Keep Gear Dry in the Field
By Products With A Mission | North American Rescue | Published: 2026-10-13
Category: How-to Guides
A step-by-step field method for using waterproof packing cubes to keep medical and personal gear dry, organized, and ready to deploy.
Quick answer
Use waterproof packing cubes as your first line of defense for gear that must stay dry, then pack them inside a larger waterproof bag or pack for full protection. Start with the RunOff Waterproof Packing Cubes to organize and shield contents from moisture and spills, and pair them with a trauma kit like the Amphibious Trauma Aid Kit for a complete field-ready system.
Why waterproof packing cubes beat ordinary stuff sacks
Waterproof packing cubes are not just about organization; they create a sealed barrier that keeps moisture, spills, and damp environments away from critical gear. Unlike standard stuff sacks that may wick or absorb water, these cubes use waterproof construction to shield contents. This matters most for medical supplies, electronics, and spare clothing that can lose function when wet. In a field or travel setting, a wet bandage or a damp battery can compromise an entire kit, so the cube becomes a functional piece of your preparedness system, not just a packing convenience.
How to pack a medical kit with waterproof cubes
When organizing a trauma kit, group items by function and seal each group in its own cube. For example, keep bleeding control supplies together, airway items together, and personal medications separate. This limits cross-contamination and makes it faster to find what you need. The RunOff Waterproof Packing Cubes are designed with a focus on durability and water resistance, so they can handle repeated use in demanding environments. If you are building a kit around the Amphibious Trauma Aid Kit (ATAK), use cubes to compartmentalize extra supplies or to protect the kit itself when it is not in use. Remember that no packing cube replaces a fully waterproof hard case for extreme submersion, but for rain, splashes, and damp storage, they are a lightweight and practical solution.
Travel and everyday carry applications
For travel, waterproof packing cubes keep dirty laundry away from clean clothes and protect items from spilled toiletries. In a vehicle or daypack, they organize small items like chargers, snacks, or first aid supplies while adding a layer of moisture protection. The same principles apply whether you are hiking, camping, or commuting: assign each cube a category, pack it consistently, and you will always know where things are. Because these cubes are lightweight and compact, they add minimal bulk while providing meaningful protection.
Step-by-step field method
- Choose the right cube size: Match cube size to the gear it will hold. Small cubes for medications and small electronics, medium for clothing, large for bulky items like a trauma kit. Avoid overstuffing, which can stress seams and reduce water resistance. Checkpoint: The cube should close easily without bulging.
- Pre-dry and inspect gear: Before packing, ensure all items are dry and free of dirt or moisture. Even a tiny amount of moisture trapped inside can lead to mold or corrosion. Wipe down gear with a dry cloth if needed. Checkpoint: No dampness or condensation inside the cube.
- Pack by priority and function: Place most critical items in the cube that will be easiest to access. For medical kits, put bleeding control supplies in a dedicated cube that can be grabbed first. Use smaller cubes inside larger ones for sub-organization. Checkpoint: You can identify and retrieve critical items without unpacking everything.
- Seal and compress: Close the cube using its intended closure method, pressing out excess air as you seal. This reduces bulk and creates a tighter barrier. Do not force the closure; if it resists, remove some items. Checkpoint: The seal is fully closed with no gaps or folds caught in the closure.
- Store and transport correctly: Place packed cubes inside a larger pack or bag. For maximum protection, use a waterproof backpack or dry bag as an outer layer. Avoid placing cubes directly against sharp objects that could puncture them. Checkpoint: Cubes are not exposed to abrasion or punctures during transport.
- Maintain and re-check: After each trip or deployment, empty cubes, wipe them clean, and allow them to dry fully before storing. Inspect for wear or damage. Re-pack only when completely dry. Checkpoint: Cubes are stored dry and ready for next use.
Product facts
- RunOff Waterproof Packing Cubes: Waterproof construction helps shield contents from moisture and spills. Keeps critical gear dry even in wet or humid conditions, reducing the risk of ruined supplies.
- Amphibious Trauma Aid Kit (ATAK): Compact and portable design for easy carry and deployment in the field. Allows you to bring trauma care capabilities into austere environments without adding excessive weight.
