IMPACT Women's Boot vs Hoka Kaha 2 Frost GTX
Buy the IMPACT for deep cold and standing around: it is rated to -49°F to -76°F and built as a removable-liner expedition boot. Buy the Hoka Kaha 2 Frost GTX for cold-weather hiking and walking, where its cushioning and Vibram grip matter more than extreme warmth. No price was given for the IMPACT; the Kaha 2 Frost GTX is $219.99 at eBay as of November 3, 2026, and has sold as low as $102.00 on October 31, 2026.
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IMPACT Women's Boot
4.8Choose the IMPACT if you face polar-level cold, low activity, or long periods standing in snow and need the warmest boot here.
- Warmest rating in this pair by a wide margin
- Tested at both poles
- Removable multi-layer inner boot system
- Tall 12-inch shaft covers deep snow
- Heavy at 5.7 lbs per pair
- Stiff, bulky build suits low activity, not fast hiking
- No listed outsole or cushioning details
- Women's sizing only
What separates them
| IMPACT Women's Boot | Hoka Kaha 2 Frost GTX | |
|---|---|---|
| Cold comfort rating | -49°F to -76°F | -25°F |
| Intended use | Extended time in extreme cold with low to moderate activity | Hiking, winter walking, travel, long days on feet |
| Weight | 5.7 lbs per pair (women's size 6 basis) | 20.30 oz per boot |
| Waterproofing | B-TEK DRY waterproof base | GORE-TEX membrane |
| Outsole | Not specified | Vibram Megagrip with Traction Lug, 5 mm lugs |
| Cushioning | Inner boot system, not a cushioned midsole | Dual-density CMEVA with HUBBLE heel and SwallowTail |
| Height | 12 inches | Over-the-ankle |
Price history
- IMPACT Women's Boot: lowest $276.00 on Oct 30 at Nordstrom.
- Hoka Kaha 2 Frost GTX: lowest $102.00 on Oct 31 at solucionfamiliar.com; $140.00 on Nov 3.
Prices at every store
IMPACT Women's Boot
- Baffin - Born in the North '79Check price at Baffin - Born in the North '79
- NordstromCheck price at Nordstrom
Hoka Kaha 2 Frost GTX
- eBayNew
In stockSold by hannabeast1
$219.99Observed Nov 3, 2026, 8:16 AM - HOKANew
In stock
$280.00Observed Nov 3, 2026, 12:03 PM - REINew
In stock
$280.00Observed Nov 3, 2026, 12:03 PM - AmazonNew
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
$361.48Observed Nov 3, 2026, 8:16 AM
Also available at
- 6pm.comCheck price at 6pm.com
- ScheelsCheck price at Scheels
- farfetch.comCheck price at farfetch.com
Specs compared
| Spec | IMPACT Women's Boot | Hoka Kaha 2 Frost GTX |
|---|---|---|
| Height | 12” | — |
| External Forefoot Width | 4.25” | — |
| External Length | 15.25” | — |
| Weight of Pair | 5.7 lbs | — |
| Size Basis | Women's Size: 6 | — |
| Cold Comfort Rating | -45°C to -60°C / -49°F to -76°F | — |
| Waterproof Class | B-TEK™ DRY WATERPROOF BASE | — |
| Sizes | — | Men’s 7-15, Women’s 5-11 |
| Weight | — | 20.30 oz |
| Heel-To-Toe Drop | — | 8.00 mm |
What reviewers say
IMPACT Women's Boot
Owners rate it 4.8 out of 5 across 134 ratings, with warmth in deep cold the dominant theme. Complaints center on bulk and weight rather than cold performance.
- Stays warm in sub-zero conditions
- Truly waterproof in slush and snow
- Durable construction
- Heavy and stiff for long walks
- Cumbersome to put on and take off
- Too warm for milder days
Hoka Kaha 2 Frost GTX
Rated 4.2 out of 5 from 132 ratings. Owners tend to praise warmth, waterproofing and cushioning, while some find the boot heavy and stiff out of the box.
- Warm in cold conditions
- Keeps feet dry in wet weather
Questions and answers
- Which is warmer, the IMPACT or the Kaha 2 Frost GTX?
- The IMPACT. It is rated to -49°F to -76°F, while the Kaha 2 Frost GTX is rated to -25°F. The gap matters if you stand still in deep cold.
- Which is better for winter hiking?
- The Kaha 2 Frost GTX. It has a cushioned CMEVA midsole, an 8 mm drop and Vibram Megagrip lugs. The IMPACT is a stiff expedition boot built for low activity.
- Is the Kaha 2 Frost GTX worth $219.99?
- It is a fair price for a GORE-TEX, Vibram-soled insulated hiker. It has sold as low as $102.00 on October 31, 2026, so watch for a drop if you are not in a hurry.
- Can I wear the IMPACT for everyday walking?
- It works, but it is heavy at 5.7 lbs per pair and stiff. For errands and commutes the Kaha 2 Frost GTX is far easier on your feet.
- Which lasts longer?
- Both are built for cold weather. The IMPACT's simple rubber-and-liner build has fewer parts to wear out; the Kaha's foam midsole will compress over time with heavy use.
- Do both come in women's sizes?
- Yes. The IMPACT is women's only, with the specs based on a women's size 6. The Kaha 2 Frost GTX comes in women's 5-11 and men's 7-15.