ULA’s core belief is our backpacks should last you a lifetime of hiking. We blend ultralight fabrics + robust product designs to make our backpacks incredibly durable while maximizing comfort and being ultralight. ULA handcrafts backpacks out of nylon, Robic and X-Pac fabrics. Robic, our legacy fabric (we’ve been using it since 2001), offers an incredible blend of ultralight construction + durability that will last you thousands of miles hiking. In 2018, we started making backpacks out of X-Pac, a highly technical fabric that offers extreme durability with the benefit of being waterproof.
* NOTE: Color availablity varies.
Our ULA 400 Robic fabric is the toughest stuff ounce for ounce we’ve ever seen and the fabric we use to make the packs in our pack line. Highly tear and abrasion-resistant, ULA 400 Robic is reinforced with a ripstop weave, increasing tear strength and stitch holding capabilities. Low stretch, this is the perfect fabric for making backpacks, day packs, duffles, and pouches; that’s why we use it! This 100% Robic Nylon fabric has a 3 pass Teflon DWR (Durable Water Repellent) and a 3 pass PU (Polyurethane) Coating, making it highly water-resistant.
500 CORDURA CAMO
Our 500 Cordura Camo fabrics are made of 100% high tenacity 6,6 filament nylon fibers making them super strong and resistant to abrasion. This fabric is water repellent, thanks to a polyurethane coating. The Cordura does not have a ripstop grid making it not quite as tear-resistant as the Robic. It is also a little heavier than the Robic, adding an extra 2 oz to the total pack weight. Cordura fabrics have been tested in some of the harshest environments, including military applications.
Our 420D Nylon is highly tear and abrasion-resistant. This low-stretch fabric retains its shape. This fabric is water repellent, thanks to a polyurethane coating. Brighter colored standard nylon fabrics may bleed somewhat when wet and/or fade with time. 420D fabric is strong without being overly stiff or bulky.
Our X-Pac Fabrics include Terrain X-Pac™ VX21, Ripstop Soft X-Pac™ VX21 RS, High Visibility VX25, Rugged X-Pac VX42™, and Camouflage X-Pac X50™. Following is a description of each fabric type.
What is X-Pac™ fabric? Like DCF (Dyneema Composite Fabric), X-Pac™ has its roots in the sailcloth industry where most ultralight, ultrastrong, waterproof fabrics are born. Developed and distributed by Dimension-Polyant, X-Pac™ is a composite fabric comprised of multiple layers of fabric laminated into a single sheet of fabric. The layers in X-Pac™ consist of a Nylon, Cordura, or Polyester face fabric, an X-PLY™ mesh, a waterproof film and a taffeta backing with a water-resistant coating. This technology makes X-Pac ultralight, ultrastrong, abrasion and tear resistant, and highly waterproof. In short, it’s perfect for making outdoor gear, and we think you’ll like it!
Lite Skin® 100% waterproof LS® laminates utilize a non-woven face enhanced with a UVt® top coating for the perfect combination of lightweight and long-lasting abrasion resistance. X-Pac LS07™ 70D waterproof, abrasion-resistant pack fabric, is very thin, durable, and flexible. LS07 is ideal for ultralight performance applications. This laminate fabric is comprised of the following layers: Non-Woven Polyester LiteSkin Face, DP UvT top-coating, 70 Denier Rip-Stop Nylon Backing.
X-Pac VX07 is a mid-weight X4 laminate that provides a rugged combination of light weight and high tear-resistance. X4 laminates feature an innovative four-layer construction that’s rugged, flexible, 100% waterproof, and features X-Pac’s patented X‑PLY® fiber reinforcement technology.This laminate is comprised of the following layers: DWR 70D Ripstop nylon face, Black post-consumer recycled polyester X-PLY® at 22°, 0.25 mil polyester film, with 50D polyester taffeta backing.
Lite Skin® 100% waterproof LS® laminates utilize a non-woven face enhanced with a UVt® top coating for the perfect combination of lightweight and long-lasting abrasion resistance. LS21 has the same 210d nylon face as VX21 fabric, but it is applied to the back side of the laminate, resulting in a highly abrasion-resistant face fabric with similar stitch-holding properties as VX21. This laminate fabric is comprised of the following layers: Non-Woven Polyester LiteSkin® Face, DP UvT top-coating, 0.5 mil polyester film, and a 210 Denier Nylon backing.
TERRAIN X-PAC™ VX21
Terrain X-Pac VX21™ Fabric is one of the most popular high-performance technical fabrics in the industry. The combination of low stretch, waterproof construction, and 210 denier face fabric strikes a near-perfect balance between weight and durability, making Terrain X-Pac VX21™ fabric ideal for backpacks, rain gear, cycle bags, stuff sacks, pouches, and many other outdoor gear applications. If you’re looking for a fabric with a softer hand, try the Ripstop Soft X-Pac VX21 RS™. This laminate fabric is comprised of the following layers: C6 DWR 210 Denier Nylon Face, Black Polyester X-Ply™ at 22°, 0.25Mil PET Film, and a 50 Denier Polyester Taffeta Backing.
OLIVE / Dark Green
TERRAIN X-PAC™ VX21RS
Ripstop Soft X-Pac VX21 RS™ Fabric features a softer hand than the standard Terrain X-Pac™ VX21, while the addition of the ripstop weave increases tear strength and stitch holding capabilities. While it is rated slightly less high in abrasion resistance than the VX21, it’s tear strength is higher thanks to the ripstop checker pattern. The Ripstop Soft X-Pac VX21 RS™ is low stretch, waterproof, and the 210 denier ripstop Nylon face make this fabric ideal for backpacks, rain gear, cycle bags, stuff sacks, pouches, and other outdoor gear. This laminate fabric is comprised of the following layers: C6 DWR 210 Denier Ripstop Nylon Face with Polyester & PU Waterproof Coating, Black Polyester X-Ply™ at 22°, and a 50 Denier Polyester Taffeta Backing.
HIGH VISIBILITY VX25
High Visibility VX25 Fabric is made with UV resistant dyed polyester face fabric and was made to enhance the safety of backpacks, gear bags, cycle bags, and any gear you want people to notice. Available in Hot Lime and Hot Orange. Slightly lighter weight than the VX21 RS and the VX21, this 250 Denier, abrasion resistant, waterproof fabric can be used as a visibility accent color, or for a complete piece of gear that screams, “Can you see me now?!” This laminate fabric is comprised of the following layers: C0 DWR 250 Denier Polyester Face, Black Polyester X-Ply™ at 22°, 0.25 Mil PET Film, and a 50 Denier Polyester Backing.
RUGGED X-PAC VX42™
Rugged X-Pac VX42™ Fabric is what you use if you’re looking to reinforce high abrasion/ high stress areas of your fabric gear, or if your looking to make a super-rugged piece of gear that’s practically bombproof. X-Pac VX42™ is extremely abrasion resistant, waterproof, and tear resistant. This laminate fabric is comprised of the following layers: C6 DWR 420 Denier Nylon Face, Black Polyester X-Ply™ at 22°, 0.25 Mil PET Film, and a 50 Denier Polyester Taffeta Backing.
CAMOUFLAGE X-PAC X50™
The Camouflage X-Pac X50™ Fabric uses extra tough 500 Denier Cordura face fabric to create a highly abrasion resistant, tear resistant, high tensile and waterproof material that’s super bomber and can handle even the toughest of conditions. From backpacking gear, to hunting gear, to x-cross backcountry biking gear – the Camouflage X-Pac X50™ can handle the worst of it. This laminate fabric is comprised of the following layers: C0 DWR 500 Denier Cordura Nylon Face, Black Polyester X-Ply™ at 22°, and a 0.5 Mil Shiny Polyester Film Backing.
X-Pac X51™ Fabric uses the heaviest, 500 x 1000D Cordura® face fabric for a highly abrasion-resistant, tear-resistant, waterproof material. X-Pac X51™ can handle the worst you can throw at it. This laminate fabric is comprised of the following layers: 500 x 1000 Denier Cordura Nylon Face, Black Polyester X-Ply™ at 22°, and a 0.5 Mil Shiny Polyester Film Backing.
RX40 X-PAC ROBIC
Our ULA 400 Robic fabric as X-Pac. Highly tear and abrasion-resistant, RX40 Robic is reinforced with a ripstop weave, increasing tear strength and stitch holding capabilities. Multi-layered laminate is waterproof to 200+ PSI.