New design
New mold this season. Same job, sharper look.
New moldLo Rider
The mid-cut. Hi Flyer warmth, lower to the ground.
All boots ship free Free returns and exchanges New '26 colors dropping soon
Built for the
Good Yuck out there.
Next-gen EVA
Our Closed Cell Foam is formulated for lightweight design, improved insulation, and yuckproof performance.
Removable liner
Pull 'em out, throw 'em in the wash, dry 'em out for your next adventure.
Warm to -20°F
For the moments your dog stops, looks at you, and quietly questions the plan. You keep walking. Toes stay toasty.
Slip-on, no laces
The whole point. Step in, cinch the cuff, leave. Anyone who's ever tied a frozen lace knows what we mean.
Lightweight
Most boots in this category are 2 to 3 lbs each. Your calves will not file a complaint.
Waterproof
Just waterproof. Step in a creek if you want. We'd love to keep you dry.
Two more boots.
Same Loon'r.
Why we built them
from foam
Most boots in this category are leather or rubber over an insulating layer. We made the whole thing from closed-cell EVA: the same foam in your sneakers' midsole, but molded into a complete boot. Here's what that buys you.
- Lighter. Most boots in this category are 2 to 3 lbs each. Ours don't ask that of your legs.
- Warmer per ounce. Closed-cell EVA traps air. Air doesn't conduct cold. The math works out.
- Naturally waterproof. No DWR coating to wear off, no leather to crack. The shell is sealed because that's how foam works.
- Doesn't crack in cold. Leather stiffens. Rubber gets brittle. EVA stays flexible at -20°F.
- Doesn't get heavy when wet. It doesn't absorb water. It doesn't gain weight.
- Easier to clean. Garden hose. Done.
Almost every other boot in this category is built differently. We're not saying ours is the only way. We're saying it's the way that doesn't ask anything of you.
The liner
is our secret
Open the cuff and the liner lifts right out. That's the part most other EVA boot makers don't do, and it's the difference between a boot that's dry by morning and one that's still damp Tuesday.
- Pull it out. Wet day? Liner sits by the heater, shell by the door. Dry by morning.
- Throw it in the wash. Cold gentle cycle, lay flat to dry. (Not the dryer. Never the dryer.)
- Swap it out. Two pairs of liners means year-round dry feet without buying a second pair of shells.
- Replace it. When the liner eventually wears out years from now, buy a new one. The shell keeps going.
Built-in linings are simpler to make. Removable ones are better to live with.
Read the full care guide →Shop replacement liners →Six changes.
Same boot.
Mostly.
Six things changed from '25 to '26. The rest stays. Here's the field notes.
Next-gen EVA blend
Closed cell foam, reformulated. Lighter, warmer, more yuckproof.
Closed cell
Cuff comfort
Redrawn cuff mold and lock. Easier on, snugger in, stays put on the trail.
Cuff V2
Improved support + cushion
Extra layer underfoot. Goes the distance without going flat.
EVA stack
Refined liner
Updated liner system. Pull it out, throw it in the wash, dry overnight.
New liner
New + refreshed colors
Three new. Three refreshed. Five returning. Eleven in all.
11 colorsCommon questions
The stuff people actually email us about.
What size should I order?
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Measure your foot. Stand on a piece of paper with your heel against a wall, mark the tip of your longest toe, measure the distance in inches. Match that to our size chart. Don't guess by your usual sneaker size. Our boots are unisex sized: the chart shows men's and women's columns side by side because the same physical boot fits both. If you fall between sizes, see the half-size question below.
Do they run small or big?
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They run true to our size chart. The chart is the boss, not your usual sneaker number. Half the customers who get the wrong size on the first try were guessing instead of measuring. So: measure your foot (see above), trust the number you wrote down, and resist the urge to be clever.
I'm between sizes. Up or down?
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Size down. Our liner is built thick and breaks in after a few wears, so a snug-not-squished fit out of the box settles to just-right. Going up is where heel slip comes from: if your heel feels slippy after a few wears, you went a step too big. Order the smaller of the two, and exchange free within 30 days if it's not quite right.
Do they fit wide feet?
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Yes, with caveats. The EVA shell is naturally roomy through the forefoot and doesn't compress around the sides the way leather does. Customers with bunions, wide forefeet, and EE/EEE width feet generally find them comfortable. EEEE+ width, we can't promise, but our 30-day return policy means it's a safe try.
Will they fit wide calves?
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The Hi Flyer cinches at the cuff via a draw-cord, so it adjusts across a wide range of calf circumferences. If your calf is at the upper end of that range or you want a roomier fit at the top, the Lo Rider (lower cut) is a safer pick. If you have a specific measurement and want to confirm, email us at hello@loonr.com.
Are they stiff to walk in?
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Not anymore. Our previous design used a stiffer EVA that customers (rightly) said went hard and brittle in the cold. Our Fall '26 redesign uses a more flexible EVA formulation tuned specifically for cold-weather performance, so the boots flex when your foot does, even when it's freezing outside. Day one, you'll feel a little break-in. Day three, you'll forget you're wearing them.
How warm are they?
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Less about one number, more about staying comfortable across a wide range, roughly -20°F to +55°F. The cold rating gets the headlines, but the EVA insulates without cooking your feet, so these hold up from deep winter through mud season and shoulder weather. (Assumes a sock, the liner in, and you moving around.) Customers wear them for snow shoveling, dog walks, eight-hour outdoor shifts, and the school run when the forecast can't decide which side of the bed to get out of.
Are they waterproof?
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Yes. We couldn't bear the name of one of nature's most waterproof birds if we weren't. The EVA shell doesn't absorb water, and the cinch cuff keeps snow and slush out. Wet snow, slush, puddles, spring rain. All fine. Walk across a river and the boots will float; we still recommend not doing that.
Can I buy replacement liners?
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Yes. Liners are sold separately and size-matched to your boot (shop liners). A lot of customers buy a second pair so they can rotate liners for drying. If your dog chewed yours (it happens, we get the emails), email hello@loonr.com with a photo, we'll figure something out.
How long does shipping take?
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Most orders ship within 1 to 2 business days. Standard ground delivery is 3 to 7 business days within the continental US after that. We'll send a tracking number when your order ships. All boots ship free. Smaller items (replacement liners, parts) ship at a flat $12.99. Note: discount codes don't stack with free shipping on the same order.
Returns and exchanges?
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You have 30 days from your order date. Returns and exchanges are free, both ways. Boots should be unworn, or worn only enough to figure out the fit (a couple of indoor laps around the house counts; a snowy outdoor walk doesn't). Start a return at our Returns & Exchanges page. We'll walk you through the steps. Refunds hit your card 5 to 10 business days after we receive the return. Exchanges ship as soon as we process the inbound. No fee, no catch.
From the Van
We started this in a muddy parking lot.
March 2024
Silverton, Colorado
Mud season at its finest. Dogs, gear, late nights, and a pair of unfussy winter boots we'd grabbed on a trip to Japan that quietly became the MVP of the whole week. Light, warm, waterproof, no fuss. The boots that handled deep snow at noon and a muddy parking lot at midnight without missing a beat.
The Hi Flyer is the version of those boots built for the conditions that made us obsessed in the first place.
Mike, Founder
Fit guide
Will they fit?
Probably, yes.
Sized true to your normal sneaker, with room for a thick sock.
View full conversion grid ↓
| US Men | US Women | Foot length |
|---|---|---|
| M4 | W5 | 23.4 cm / 9.2 in |
| M5 | W6 | 24.2 cm / 9.5 in |
| M6 | W7 | 25.1 cm / 9.9 in |
| M7 | W8 | 25.9 cm / 10.2 in |
| M8 | W9 | 26.7 cm / 10.5 in |
| M9 | W10 | 27.4 cm / 10.8 in |
| M10 | W11 | 28.2 cm / 11.1 in |
| M11 | W12 | 29.0 cm / 11.4 in |
| M12-13 | 30.2 cm / 11.9 in | |
| M14-15 | 31.8 cm / 12.5 in | |
Full sizes run M4/W5 to M11/W12, then two combined sizes: M12-13 and M14-15.
Measure your foot, not your guess.
Stand on a piece of paper, heel against a wall. Mark the tip of your longest toe, then measure heel to mark. Match that number to the chart. Our boots are unisex, so the M and W labels are the same boot with different numbers. Between sizes? Size down.
Snug is good. The liner breaks in after a few wears, so a snug-not-squished fit out of the box settles to just-right. And measure at the end of the day, when your feet are at their biggest.
Still on the fence? Email hello@loonr.com with your measurement and we'll point you to the right pair.
The Yuckproof Guarantee
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12-month manufacturer's warranty on any boot that fails before you do. Covers cracking, separating soles, broken cinch hardware, busted liners, leaks. Does not cover dogs. Does not cover lawnmowers. Submit a photo with your order number, we'll sort it. Read the full guarantee →
Caring for the boots
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Spray the EVA with the garden hose. Liner washes cold on the gentle cycle, lays flat to dry. Don't put the liner in the dryer. Don't store the boot near a heater. Don't stage your boots on the front step in July sun for the gram (the color holds up but UV is not their friend). Read the full care guide →
$159.95
Frosty's Flake
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