Blackthorn | Men's Waterproof Insulated Winter Boots
Buy More, Pay Less
- 2 items10% off
- 3 items15% off
- 4+ items25% off
*Extra discount is applied on top of existing sale prices.
Blackthorn terrain boots are engineered for durability where it counts. Reliable waterproof protection keeps feet dry through rain, slush, and snow, while the insulated lining shields against extreme cold — so the weather stops deciding your plans. These are boots built to be worn hard and trusted completely.
Comfort gets equal engineering. A cushioned insole absorbs impact through all-day wear, and the non-slip sole provides confident stability across wet pavement, icy paths, and uneven terrain. The rugged construction holds up to daily winter abuse while keeping a clean profile that works with jeans as well as trail gear. Lace them snug and the supportive fit locks the heel in place, keeping fatigue at bay through long days of standing, walking, and hauling.
Reach for Blackthorn on winter commutes, weekend hikes, dog walks in the sleet, and every errand the forecast tries to cancel. Kessoro builds gear for real conditions, not just catalog photos — and these boots prove it season after season, mile after cold, wet mile. They clean up fast after muddy outings, pair surprisingly well with casual weekend outfits, and stand ready by the door for whatever the season sends: rain, slush, ice, or all three in one afternoon.
- Reliable waterproof protection
- Insulated lining for extreme cold
- Cushioned insole for all-day comfort
- Non-slip sole grips varied terrain
- Durable construction for daily winter wear
Size guide
Kessoro garments are cut to US sizing. The charts below are body measurements — measure yourself, then pick the size your measurements fall into. They are not the flat measurements of the garment itself.
How to measure
- Chest / bust — around the fullest part, keeping the tape level under your arms.
- Waist — around your natural waist, the narrowest point, usually just above the navel.
- Hips — around the fullest part, roughly 8 inches below the waist.
- Inseam — from the crotch seam to the bottom of the ankle.
Keep the tape snug but not tight, and measure over light clothing or bare skin.
Women's sizing
| Size | US | Bust (in) | Waist (in) | Hip (in) |
|---|---|---|---|---|
| XS | 0–2 | 31–32 | 24–25 | 34–35 |
| S | 4–6 | 33–34 | 26–27 | 36–37 |
| M | 8–10 | 35–36 | 28–29 | 38–39 |
| L | 12–14 | 37–39 | 30–32 | 40–42 |
| XL | 16–18 | 40–42 | 33–35 | 43–45 |
| 2XL | 20–22 | 43–45 | 36–38 | 46–48 |
Men's sizing
| Size | Chest (in) | Waist (in) | Neck (in) |
|---|---|---|---|
| S | 35–37 | 29–31 | 14–14½ |
| M | 38–40 | 32–34 | 15–15½ |
| L | 41–43 | 35–37 | 16–16½ |
| XL | 44–46 | 38–40 | 17–17½ |
| 2XL | 47–49 | 41–43 | 18–18½ |
| 3XL | 50–52 | 44–46 | 18½–19 |
Footwear
Shoe sizes are listed in US sizing on the product page. If you are normally a half size, we recommend taking the next size up — most of our footwear runs slightly narrow through the toe box.
If you're between sizes
Size up. This is the single most common piece of advice we give. It applies especially to:
- Knitwear, sweaters and cardigans, which are cut closer than you might expect.
- Anything described as slim-fit or tailored.
- Outerwear you plan to layer over a shirt or sweater.
If you prefer a relaxed or oversized look, size up regardless of where your measurements land.
Still not sure?
Email customersupport@kessoro.co with the product name and your measurements and we'll tell you which size to order. We'd much rather answer a question than process a return.
And if the fit isn't right when it arrives, you have 30 days to return it — unworn, unwashed, with tags attached. Full details on our returns page.
Shipping & returns
Free shipping on every US order, with tracking. Orders are processed in 1 to 3 business days and arrive 5 to 12 business days after dispatch.
Return or exchange within 30 days of delivery, unworn and with tags attached. No restocking fees. Email customersupport@kessoro.co to start a return.
Size Guide
Kessoro garments are cut to US sizing. The charts below are body measurements — measure yourself, then pick the size your measurements fall into. They are not the flat measurements of the garment itself.
How to measure
- Chest / bust — around the fullest part, keeping the tape level under your arms.
- Waist — around your natural waist, the narrowest point, usually just above the navel.
- Hips — around the fullest part, roughly 8 inches below the waist.
- Inseam — from the crotch seam to the bottom of the ankle.
Keep the tape snug but not tight, and measure over light clothing or bare skin.
Women's sizing
| Size | US | Bust (in) | Waist (in) | Hip (in) |
|---|---|---|---|---|
| XS | 0–2 | 31–32 | 24–25 | 34–35 |
| S | 4–6 | 33–34 | 26–27 | 36–37 |
| M | 8–10 | 35–36 | 28–29 | 38–39 |
| L | 12–14 | 37–39 | 30–32 | 40–42 |
| XL | 16–18 | 40–42 | 33–35 | 43–45 |
| 2XL | 20–22 | 43–45 | 36–38 | 46–48 |
Men's sizing
| Size | Chest (in) | Waist (in) | Neck (in) |
|---|---|---|---|
| S | 35–37 | 29–31 | 14–14½ |
| M | 38–40 | 32–34 | 15–15½ |
| L | 41–43 | 35–37 | 16–16½ |
| XL | 44–46 | 38–40 | 17–17½ |
| 2XL | 47–49 | 41–43 | 18–18½ |
| 3XL | 50–52 | 44–46 | 18½–19 |
Footwear
Shoe sizes are listed in US sizing on the product page. If you are normally a half size, we recommend taking the next size up — most of our footwear runs slightly narrow through the toe box.
If you're between sizes
Size up. This is the single most common piece of advice we give. It applies especially to:
- Knitwear, sweaters and cardigans, which are cut closer than you might expect.
- Anything described as slim-fit or tailored.
- Outerwear you plan to layer over a shirt or sweater.
If you prefer a relaxed or oversized look, size up regardless of where your measurements land.
Still not sure?
Email customersupport@kessoro.co with the product name and your measurements and we'll tell you which size to order. We'd much rather answer a question than process a return.
And if the fit isn't right when it arrives, you have 30 days to return it — unworn, unwashed, with tags attached. Full details on our returns page.
Complete the look
Mix and match: 2 pieces 10% off, 3 pieces 15% off, 4+ pieces 25% off. Applied automatically at checkout.
Our 30-day promise.
Inspected by hand.
Every piece is checked before it leaves us.
Always your choice.
Return or exchange within 30 days. No restocking fees, no questions asked.
Real people, on hand.
For sizing, exchanges, or anything else, our team is at customersupport@kessoro.co.
Loved by 1,200+ customers.
Real, verified reviews from people who wear Kessoro.
I screamed when I opened this - the packaging was gorgeous and the piece inside was even better. Exactly what I ordered, true to size, and the quality is incredible. Already planning my next purchase.
Finally found a brand that gets elevated basics right. Everything feels premium without that ridiculous markup. The fabric on this is so soft and the fit is genuinely flattering. Will be back for more.
Bought this for a work trip and got so many compliments. Clean, well-fitted, and the material holds up all day without wrinkling. Kessoro is my new go-to for business casual.
The color is even better in person than the photos, which never happens. Fits beautifully, shipped faster than expected, and the returns process was super easy when I needed to swap a size. Love this brand.
I'm very picky about quality and Kessoro delivered. The stitching is clean, the fabric is substantial, and it washes perfectly. I've bought from a lot of online brands and this is one of the few that actually matched the photos.
Ordered two pieces and both arrived beautifully packaged and exactly as described. The sizing is spot on — I'm usually between sizes and went with the recommendation in the size guide, which was perfect.
Needed something sharp for a dinner out and this delivered. Looked expensive, wore comfortably all evening, and held its shape. Already told three friends about Kessoro. Solid brand.
As someone who struggles to find things that fit well off the rack, I was shocked at how perfectly this fit. True to size, great length, and the material doesn't cling. I've already ordered two more colors.
Super impressed with the quality for the price. I've paid twice as much for less at other stores. The fabric feels premium, shipping was fast, and customer service responded to my question within hours. 10/10.
I bought this as a gift for my daughter and she absolutely loves it. The quality is evident from the moment you open the box. Classic, elegant, and beautifully made. Kessoro has a new loyal customer.
