
Alpaca Work Socks - Heavy Duty
Color: Black
Size: Medium
| SIZE | Medium | Large | X-Large |
|---|---|---|---|
| US MEN | 6-9 | 9.5-12 | 12.5-15 |
| US WOMEN | 7-9.5 | 10-13 | - |
Not sure which size to choose? If you're between sizes, we recommend sizing down — alpaca relaxes slightly with wear. And if it's not quite right, returns are easy for 30 days.

BUILT FOR MILD TO HOT (50° - 100°+ F)
| Cushioned for 12-hour shifts | |
| Cool in extreme heat | |
| Breathable mesh ventilation zones | |
| Premium baby alpaca fiber blend | |
| Moisture-wicking, odor-resistant | |
| Reinforced heel and toe |
| FIT | Mid calf |
| CUSHION | Max |
| LOVED BY | Tradesmen, first responders |
| MATERIALS | Premium Peruvian baby alpaca fiber blend |
| CARE | Machine wash cold, air dry |
| AVOID | Bleach and fabric softener |
| NOTE | Keeps its shape and softness wash after wash |
| FREE | US orders over $50 |
| STANDARD | Calculated at checkout for orders under $50 |
| PROCESSING | Ships within 1-2 business days |
| 30 DAYS | Comfort guarantee — exchange or full refund |
| EXCHANGES | Wrong size? We'll swap it, easy |
| START | Message us with your order number |
15-20 MMHG
Alpaca Compression Socks★★★★★9,428 ReviewsTen hours on concrete earns you compression. Graduated 15-20 mmHg from ankle to calf, same baby alpaca blend.15-20 MMHGEASES SWELLINGALL-DAY SUPPORT
$44.90Free shipping on orders $50+ · 30-day guarantee
Alpaca Compression Socks
$44.90
Add it and your order ships free — $79.85 together
TWELVE HOURS ON CONCRETE
Built for the people who don't get to sit down.

IMPACT PADDING AT THE HEEL
A thicker knit block right where concrete hits hardest. Takes the shock your boots and your knees have been taking all day.
STAYS UP THROUGH THE WHOLE SHIFT
A ribbed cuff that grips the calf without cutting into it. No sagging at hour six, no dug-in ring at hour twelve.

DRY FEET, NOT DAMP ONES
Alpaca moves sweat out instead of soaking it in. Same sock at clock-out as at clock-in.
FIND YOUR PERFECT PAIR
SWIPE TO COMPARE →
FIND YOUR FIT
SIZE GUIDE
| SIZE | US MEN | US WOMEN |
|---|---|---|
| MEDIUM | 6 – 9 | 7 – 9.5 |
| LARGE | 9.5 – 12 | 10 – 13 |
| X-LARGE | 12.5 – 15 | — |
Between sizes? Size down. Alpaca relaxes slightly with wear, and a sock that shifts inside your shoe is what creates the hot spot you are trying to avoid.
Sizes are US shoe sizes. Our socks are unisex, so the men's and women's ranges overlap inside each size.

GOT QUESTIONS?
View material comparison chart
View size guide
Start a return
WORN & LOVED BY 44,000+ CUSTOMERS
BEST SELLERS






CUSTOMER REVIEWS
Twelve hour shifts on concrete
Framing all day. These are the first socks that do not leave my feet aching at the truck.
My boots stopped stinking
Two days in the same pair and nothing. My old cotton socks were a biohazard by lunch.
Bought for my husband, he hid them
He is an electrician and now guards his pairs from me. Ordered four more.
Max cushion is not a gimmick
You feel it under the ball of the foot the second you stand up on concrete.
Great, thicker than expected
Excellent sock. Just know they fill out a boot, so size accordingly.
Summer job site
Ninety five degrees and my feet were not soaked. That was the whole reason I tried alpaca.
Heel has not blown out
Three months in. My old ones lasted five weeks.
No more end of day throbbing
Retail stockroom, nine hours. Big difference by week two.
Worth double the price
I would pay more. I say that about almost nothing.
Soft for a work sock
Expected burlap, got something my wife tried to steal.
Stays up under the boot
No sliding, no bunching at the heel, nothing to fix mid shift.
Kitchen shifts
Line cook, ten hours standing. These made the last two hours survivable.
Good, but sizing is confusing
The sock is fine. I am between L and XL and neither is quite right.
Dry through a wet week
Rain all week, boots damp, feet somehow not.
Bought six pairs
Tested one, ordered five more the same night.
Warmer in winter, cooler in summer
Same sock year round on the site. Did not think that was possible.
No blisters
Two blisters a month before. None in six weeks.
Hospital housekeeping
On my feet nonstop. My ankles used to swell, not anymore.
Gift for my brother
He drives a forklift ten hours a day and called to say thanks.
Too thick for my boot
Quality is there but with my steel toes it was too much bulk. Refund was easy.
Twenty washes
Still thick, still shaped right, no pilling.
Cold warehouse
Unheated warehouse in January. First winter my toes were not numb.
My whole crew switched
Showed one guy, now four of us wear them.
The toe seam does not rub
Flat enough that I forget it is there.
Landscaping season
Seven to five outdoors. Dry, no rubbing, no smell.
Wrong size shipped
Ordered XL, got L. Fixed fast and no charge, but I lost a week.
Still my best pair
Six months of daily wear and they are the ones I look for in the drawer.
Cheaper than replacing socks monthly
I was buying a new multipack every month. Not anymore.
Feet dry all shift
I sweat a lot and this is the first sock that keeps up.
The one I buy on purpose
Most socks I buy by accident. These I order deliberately.




