How to Choose Hiking Boots
REI Co-op Flash Hiking Boots - Women's
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Fly over trails in the waterproof, breathable women's REI Co-op Flash hiking boots that are comfy right out of the box. REI-exclusive technologies create fast-and-light boots—with a lighter footprint.
Shop similar productsKey Details
Waterproof
Yes
Upper
99% recycled PET polyester FirmaKnit™; 30% recycled thermoplastic urethane (TPU) overlay
Weight (Pair)
1 lb. 13 oz.
- Strong and socklike FirmaKnit™ uppers are made from 99% recycled PET polyester and are designed for lightweight yet durable comfort right out of the box
- HydroWall™ complete waterproof/breathable protection keeps your feet dry when the trail ahead isn't—and uses 75% recycled polyester to do so
- 20% recycled rubber TerraGrip™ tread provides anti-slip grip on all kinds of terrain with 4 mm forefoot climbing lugs for going up and 4 mm heel braking lugs for coming down
- TerraLoft™ midsoles use 10% algae-based BLOOM™ foam to cradle your feet with a cushioning system that feels like your favorite trail-running shoes (soft, but not too soft)
- TrailBed™ insoles use Insite® Contoura® technology created with podiatrists to ensure support and comfort; plus, it's made with 25% USDA-certified bio-based Susterra® compound
- 2-layer 30% recycled TPU overlays are designed to create durable and supportive uppers—the structure you need for long hours on the trail that's still light and minimalist
- Molded nylon midfoot shanks provide lightweight support to protect your feet from the trail and help propel you forward
- Recycled PET polyester webbing and lacing creates a midfoot cradle system that allows for a highly adjustable and locked-down fit
- Extra space in the toe boxes allows for natural changes in your feet (like swelling) during hours of trail exploration
- Informed by feedback from over 6,000 people and field tested by 100 co-op members over 2,000 hours and 700+ miles
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Imported.
View the REI Co-op Flash Product LineView all REI Co-op Women's Day Hiking Boots| Best Use | Hiking |
|---|---|
| Footwear Height | Over-the-ankle |
| Footwear Closure | Lace-up |
| Waterproof | Yes |
| Type of Waterproofing | HydroWall™ waterproof/breathable membrane using 75% recycled polyester |
| Upper | 99% recycled PET polyester FirmaKnit™; 30% recycled thermoplastic urethane (TPU) overlay |
| Midsole | TerraLoft™ EVA using 10% algae-based BLOOM® foam |
| Support | Molded nylon midfoot shank |
| Outsole | TerraGrip™ rubber (20% recycled) |
| Vegan | Yes |
| Weight (Pair) | 1 lb. 13 oz. |
| Gender | Women's |
| Sustainability | Contains recycled materials From a Climate Label Certified brand |
REI Co-op Footwear - Women's
| 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| U.S. Women's | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 |
| UK | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 |
| EU | 37 | 37.5 | 38 | 38.5 | 39 | 40 | 40.5 | 41 | 42 | 42.5 | 43 |
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Better gear is built together
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.
