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First Lite Straightline Field Vest Dry Earth
First Lite Straightline Field Vest typha
First Lite Straightline Field Vest front
First Lite Straightline Field Vest side
First Lite Straightline Field Vest back
First Lite Straightline Field Vest field 1
First Lite Straightline Field Vest field 2
First Lite Straightline Field Vest field 3
First Lite Straightline Field Vest Dry Earth
First Lite Straightline Field Vest typha
First Lite Straightline Field Vest front
First Lite Straightline Field Vest side
First Lite Straightline Field Vest back
First Lite Straightline Field Vest field 1
First Lite Straightline Field Vest field 2
First Lite Straightline Field Vest field 3

First Lite Straightline Field Vest


The prairie pothole region of North America is known to duck hunters for its world class waterfowling. This landscape is very flat with rich soil, ideal for growing a buffet of crops that annually support over half of the hemisphere’s waterfowl migration. However, the lack of geological features makes the region especially prone to storms and ripping straight line winds.

Agriculture + high winds are two optimal ingredients for a successful waterfowl hunt, so long as you have the right gear. Inspired by the harsh hunting conditions of the Dakotas, the Straightline Field Vest is 100% windproof, highly water resistant, and sets a new industry standard for soft shell durability. The Straightline product family also includes a jacket configuration, check out the Straightline Field Jacket here

This style wears in, not out. Go Farther, Stay Longer.

The model in the walk-on video is 5' 11" and 170 lbs, wearing a size Medium. 


  • Unbreakable nylon face fabric with incredible stretch
  • Windproof & Waterproof membrane
  • 37.5 sherpa fleece backer
  • Rugged chap overlays in high wear areas
  • Magnetic high hand pockets are wader accessible and align with KitLink ports on the LZ Jacket and Refuge Parka
  • Dual zip-secure chest pockets
  • Zip-secure low hand pockets
  • Fit-to-Kit: Sized to wear over Transitional Knits (like Origin and Rugged Wool) and under Waterproof Outerwear and Waders

How It’s Built

  • Material: Burly, 3-Layer Softshell
  • Cut: Over your Kit
  • Primary Usage: Waterfowl
  • Actual Weight: 650 grams

Sizing Chart
First Lite Sizing Chart 1
First Lite Sizing Chart 2
First Lite Sizing Chart 4
First Lite Sizing Chart 5
First Lite Sizing Chart 6
First Lite Camouflage
First Lite Camo


First Lite patterns obliterate the human shape by utilizing a proprietary mix of nature-based algorithms in coordination with disruption and focal confusion techniques. Put more simply, the relationship between colors and shapes has been specially designed to fool the brain by resembling recurring patterns found in nature. Derived from the golden ratio found throughout the natural world, Specter™, Typha™, Fusion™, and Cipher™ dissolve into their surroundings, unlike anything else.
First Lite Specter, Typha, Fusion, and Cipher are the most versatile patterns available to hunters due to their careful design and ensured concealment no matter the proximity, season, or terrain. Created using the same scientific platform, all four of First Lite's proprietary camo patterns use trademarked technology, which provides equally exceptional concealment at close range and a distance. When it comes to whitetail hunting, First Lite Specter uses the proven technology of its predecessors (Fusion and Cipher) but expresses shapes, colors, and fragmentation unique to the whitetail environment and tree canopy. Similarly, First Lite Typha expresses environmental abstracts consistent with marsh and field environments fit for the waterfowl hunter.

First Lite Comouflage Technology

First Lite Fusion

Fusion has become the most trusted pattern in breakup camouflage. From western lichen, sage, and pine to eastern deciduous hardwoods, the Fusion pattern and color palette are engineered to excel in a vast array of landscapes. Hunters virtually disappear into their surroundings at any distance – short or long – lending confidence and near-perfect stealth, whether in the trees or on an alpine ridge.


First Lite Cipher


First Lite's Cipher pattern leverages the proven working principals of Fusion and applies them to landscape palettes with less color. Cipher emphasizes the narrower color spectrum found during the autumn and winter months in both hardwood and western environments. With its muted coloration and Fusion-inspired DNA, Cipher is a deadly weapon in every hunter's arsenal.


 First Lite Typha

First Lite 37.5™ Technology

More Breathability Means You Stay Drier than the Competition

When First Lite engineered their Outerwear Collection, they looked closely at every fabric technology in existence. Having the pick of the litter, from better-known outerwear technologies to more niche, lesser marketed performance fabrics. The truth in outerwear manufacturing is that the brand in question can generally use whichever fabric they choose. The costs vary as does the performance, but if a brand is willing to pay for the best, they can choose to incorporate it into their offerings. First Lite chose 37.5 because third party empirical testing as well as extensive field use their our own employees left them greatly impressed by the superior performance of the fabric. The bottom line is that 37.5 breathes at a rate that is anywhere from 50% to 300% better than any of its competition, while offering waterproof levels that were within a 5% tolerance of our competition.

First Lite's DNA is active, extremely vigorous mountain hunting. Based in the Rocky Mountains and literally testing products year round in some of the steepest, most demanding terrain in North America. Breathability becomes paramount when you're climbing significantly steep, rugged slopes with heavy packs in less than ideal weather conditions. If you sweat under your outerwear and the fabric doesn't allow that moisture to escape, you might as well expose your base layers to the elements and skip the outerwear all together. 37.5 technology does the absolute best job of transporting that moisture from your base layers to the outside of the First Lite garment so that you can remain safe and dry while exerting yourself in the most brutal of weather conditions. This is why First Lite selected 37.5 Technology over other fabrics and has enjoyed award-winning products ever since.

The Science behind 37.5 Technology

Comfort in clothing is greatly influenced by the temperature and humidity next to skin known as the microclimate. For the average person, the body strives to maintain an ideal core body temperature of 37.5° C. You are most comfortable when the microclimate next to your skin has a relative humidity close to 37.5%. When you are in this ideal 37.5 comfort zone, you are also in your ideal performance zone. 37.5 technology helps your body manage the moisture in your microclimate to keep you in this “37.5 zone” of comfort and performance.

Your body already has the ultimate thermo-regulating system. The perspiration vapor that comes off of skin during activity cools the body when working hard. In fact, each gram of evaporated sweat releases 580 calories of stored heat. Unless this water vapor can be removed from the microclimate, it builds up in clothing, footwear, or gloves and creates a clammy and uncomfortable microclimate. 37.5 technology works to enhance the body’s natural cooling mechanism—the body puts out sweat to cool it down, 37.5 technology removes it from the microclimate.

With 37.5 technology, patented active particles permanently embedded at the fiber level capture and release moisture vapor. Not only do these active particles provide 800% more surface area to the fiber, they also provide a unique driving force to remove moisture vapor unlike any other technology. By actively responding to body heat, the active particles use this energy from the body to accelerate the vapor movement and speed up the conversion of liquid to vapor, significantly increasing drying rates. This means the hotter the user gets, the stronger the driving force removing moisture becomes—and the more comfortable the garment remains.

37.5 technology works to keep the optimum relative humidity in your microclimate so your body more efficiently maintains an ideal core temperature, enabling you to perform better, longer. Fabrics made with 37.5 technology dry up to five times faster than similar fabrics, diminishing wet cling. 37.5 technology is made with naturally derived materials so there are no harsh chemicals to irritate your skin. 37.5 active particles are permanently embedded into yarn and will never wash out or degrade.