How to Choose Rainwear

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Ultralight and packable, the women's REI Co-op Flash Air jacket may be your "just-in-case," but it's no afterthought—it's all the weather protection you need for a day on the trail, and then some.
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Best Use | Hiking |
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Fabric | 90% recycled nylon/10% Spectra polyethylene (bluesign®-approved) |
Lining Fabric | 90% recycled nylon/10% Spectra polyethylene (bluesign®-approved) |
Windproof | Yes |
Waterproof | Yes |
Type of Waterproofing | 3-layer waterproof/breathable laminate |
Hood | Yes |
Packable | Yes |
Back Length | Hip-length |
Back Length (in.) | 27.5 inches |
Gender | Women's |
Weight | 9.7 ounces |
Sustainability | Contains recycled materials Contains materials that meet the bluesign® criteria Fair Trade Certified™ factory From a Climate Label Certified brand |
XXS | XS | S | M | L | XL | 1X | 2X | 3X | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18W | 20W | 22W | 24W | 26W | |
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Numerical Size | 00 | 0-2 | 4-6 | 8-10 | 12-14 | 16 | 18 | 20-22 | 24-26 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 |
Bust | 31 | 32-33 | 34-35 | 36-37 | 38.5-40 | 41-42.5 | 43-45 | 47-49 | 51-53 | 32 | 33 | 34 | 35 | 36 | 37 | 38.5 | 40 | 42.5 | 45 | 47 | 49 | 51 | 53 |
Sleeve Length | 29.5 | 30 | 30.5 | 31 | 31.5 | 32 | 32.5 | 33.5 | 34.5 | 30 | 30 | 30.5 | 30.5 | 31 | 31 | 31.5 | 31.5 | 32 | 32.5 | 33.5 | 33.5 | 34.5 | 34.5 |
Waist | 24.5 | 25.5-26.5 | 27.5-28.5 | 29.5-30.5 | 32-33.5 | 34.5-36.5 | 37.5-39.5 | 40.5-42.5 | 44.5-46.5 | 25.5 | 26.5 | 27.5 | 28.5 | 29.5 | 30.5 | 32 | 33.5 | 36 | 38.5 | 40.5 | 42.5 | 44.5 | 46.5 |
Hip | 34 | 35-36 | 37-38 | 39-40 | 41.5-43 | 44-46 | 47-49 | 50-52 | 54-56 | 35 | 36 | 37 | 38 | 39 | 40 | 41.5 | 43 | 45.5 | 48 | 50 | 52 | 54 | 56 |
Inseam | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
Measurements are stated in inches unless otherwise indicated. Size chart values represent body measurements, not garment measurements. Some women's pants are available in petite and tall sizes. Typically petite sizes fit women 4'11" to 5'3". Regular sizes fit women 5'4" to 5'8". Tall sizes fit women 5'9" to 5'11".
PETITE: Generally, as compared to regular sizes, petite sizes are 2.5 inches shorter in inseam, 1 inch shorter in body length, 1.25 inches shorter in sleeve length and ¾ inch shorter in total rise.
TALL: tall sizes are 3 inches longer in inseam, 2 inches longer in body length, 2.5 inches longer in sleeve length and 1.25 inches longer in total rise.
Capri or cropped pants have an intentionally shorter inseam—reference the technical specs instead of this chart.
Inseam is measured to the floor.
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.
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Just picked this up in store. I compared it to the OR Helium. This fabric inside and out feel better on the REI jacket and for 3 extra ounces it has large pit zips - important if you hike in warmer or humid conditions. Unfortunately it doesn’t pack into its own pocket like the Helium does. Green color is very nice in person. This must be a new offering since I am the first review May 25 2023
The Rain jacket was perfect. I normally wear a women’s medium but purchased the Large. I wanted to wear thicker layers underneath, that was a good choice.
The waterproof zipper on the jacket is very stiff, almost impossible to zip.
This jacket is excellent. I wore it as my shell for an alpine backpacking trip, with very high winds above the tree line. I tend to have issues with ventilation/sweating and then getting cold, and this jacket really did the trick. It's truly waterproof and windproof but also due to the light weight and pit zips it breaths exceptionally well. I hope REI continues to make this in future years, as I'll be hard pressed to find a replacement that comes near to this performance in the future.