Pack Liners
Pack liners serve as an essential secondary barrier, shielding mission-critical gear from moisture, contaminants, and abrasion within rucksacks and assault bags. In field operations, exposure to water, dust, and harsh terrain can compromise even the most rugged packs.
Vinyl Technology designs and manufactures custom military pack liners built for deployment in the most demanding environments. Our liners are engineered for watertight protection, durability, and ease of use—providing a reliable interior layer that keeps contents dry, clean, and combat-ready.
Constructed from waterproof and abrasion-resistant materials, each liner is designed to meet the specifications of military and defense clients, whether for individual soldiers, special operations units, or transport of sensitive equipment. With RF-welded seams and high-strength materials, our liners deliver sealed protection in jungle, desert, or maritime conditions.
One of our biggest ongoing contracts is with the United States Armed Forces, with multiple branches using many of our manufactured various bags requiring pack liners. These sewn products include the Molle, bandoliers, combat webbing, support gear, and lots more.
Other Types of Custom Military Manufacturing
Pack Liner Manufacturing from Vinyl Technology
At Vinyl Technology, pack liner manufacturing is a natural extension of our decades-long expertise in soft goods fabrication, industrial sewing, and RF welding. Our liners are built to military-grade standards, offering a critical layer of waterproof protection inside packs used in combat, training, or transport operations.
Each pack liner is tailored for performance, with laminated coatings and precision RF-welded seams creating a seamless waterproof enclosure that stands up to repeated use under the most extreme conditions. These liners are ideal for rucksacks, assault packs, or mission-specific gear bags where internal protection from moisture and contaminants is non-negotiable.
In addition to pack liners, Vinyl Technology produces a wide range of specialty containment products and protective soft goods engineered for the defense, aerospace, and industrial sectors.
Since 1981, we’ve been a trusted, Berry-compliant manufacturing partner for government and defense contracts. We are AS9100D certified and have delivered consistent results across more than four decades of mission-critical performance.
Materials
- Thermoplastic Polyurethane (TPU) Laminates
- Polyurethane-Coated Nylon
- Polyurethane-Coated Polyester
- PVC-Coated Fabrics
- RF-Weldable Films
- Mil-Spec Vinyl Laminates
What is a pack liner?
A pack liner is a waterproof, protective insert placed inside a rucksack or assault bag to shield contents from water, dirt, and abrasion. It serves as a secondary defense, ensuring mission-critical gear stays clean and dry in adverse conditions.
What materials are used to make military-grade pack liners?
Military-grade pack liners are typically made from TPU or polyurethane-coated fabrics, RF-weldable films, and other Mil-Spec materials. These materials offer excellent waterproofing, chemical resistance, and strength without adding unnecessary weight.
How is a pack liner different from a dry bag?
While both provide waterproof protection, a pack liner is designed to fit inside a larger bag or pack, serving as an internal barrier rather than a standalone container. Pack liners are typically lightweight, shaped to match pack interiors, and optimized for quick deployment and stowage.