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Icebreaker Siren Bikini Underwear - Women's

sale $24.50 - $35.00

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Siren Bikini Underwear

Quick—ring the alarm! Someone notify the comfort police that the Icebreaker Women's Siren Bikini Underwear is the new sheriff in town. Crafted with an ultralight merino wool combined with a touch of Lycra, these full coverage bikini undies put a practical and comfortable spin on your run-of-the-mill bikini silhouette with their low rise and full coverage. Additionally, merino wool naturally kicks unsavory odors out the door so you won't feel quite as stinky after having run 15 miles through the local trail system. 

  • 83% merino wool, 12% nylon, 5% Lycra
  • Naturally antimicrobial
  • Low rise with full coverage
  • Item #ICE00HO

Responsible Collection
Responsibly Sourced
Material
83% merino wool, 12% nylon, 5% Lycra
Cut
hipster bikini
Anti-Odor
yes, natural attribute of merino wool
Recommended Use
casual, hiking, running, skiing
Manufacturer Warranty
1 year

Tech Specs

What do you think about this product?

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>Rating: 5

Yup

Familiarity:
I gave it as a gift but have feedback to share
Height
6` 0"
Weight
210 lbs

My wife needed some non-cotton underwear for skiing and running and these have been great for her. Wool is not itchy and helps wick away moisture when exercising.

>Rating: 3

Runs Small

Familiarity:
I returned this product before using it
Fit:
Runs small
Size Bought
Medium
Height
5` 7"
Weight
125 lbs

I was disappointed that the size was not true to fit. I chose Medium and my measurements were between a small/medium size. The waist was a bit big but the seat (bottom area) was cut too small. Younger girls might like this cut, but I don't as I felt it was riding up. I am usually a 5-6 in underwear and can't imagine a Large fitting in this style (waist would be big and the bottom cut would be the same). The material is thin, which might have been alright. I ended up going with the IceBreaker "hot pants" for coverage and comfort, even though it was still a little "cheeky" they stay in place and do the job.

>Rating: 5

Great Feel

The Wife: I like the soft cotton feel and cut of these.

>Rating: 5

True to size

Height
5` 11"
Weight
185 lbs

Bought my wife these in a small which is her usual size. She feels that they are little tight along the boarders, but are true to size and are great when hiking/skiing/running, etc.

>Rating: 4

Fine panties

Familiarity:
I've used it several times
Fit:
True to size

Nice bikini style panties.

>Rating: 5

Happy Camper

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
Large
Height
5` 11"
Weight
160 lbs

I really like the way these undies fit. They're not too granny and very practical for hiking/camping. I plan to put them to the test this summer (hiking the PCT) and will let you ladies know how they hold up ;) No issue with fit or sizing - I would get the same size you normally would.

>Rating: 4

Great Undies!

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
Small
Height
5` 6"
Weight
140 lbs

Love the fit of this bikini relative to other outdoor brands since this fits like a TRUE bikini and narrows in at the sides. If you have a little bit of booty I would recommend sizing up as the seaming is a little tight around the bum. Fabric and style is on point though!

>Rating: 4

great product - runs small

Familiarity:
I returned this product before using it
Fit:
Runs small
Size Bought
Small
Height
5` 4"
Weight
130 lbs

These undies are great, but I did have to return them for the right size as I found that they run smaller than the normal size I would wear. First ordered a small and had to return for Mediums.

>Rating: 3

Wool that your Granny would Love

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
medium
Height
5` 4"
Weight
120 lbs

These come in a little box that say "Wool with Sex Appeal" but i did not feel sexy in these. They were awkwardly narrow in the crotch and covered way too much of my butt.... I honestly felt like they were an updated granny panty. Maybe my figure just inst made for these but they are now shoved in the back of my dresser and will probably only be used for when Aunt Flo comes around.

>Rating: 5

Born in Nature

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
Small
Height
5` 1"
Weight
118 lbs

These are some super comfy undies for hiking and camping. Dries fast and resist odors. Order a few of these and you will love them. The fit was great. I was worried they were going to be too big but they fit perfectly. I usually wear an XS or S. I ordered a Small in these. The waist size in inches: XS (24-26) S (26-28) M(28-30) L(30-32) XL (32-35)

>Rating: 3

Honest and open review

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
small
Height
5` 4"
Weight
125 lbs

I was really excited to try these out. I love everything Icebreaker makes so I was really excited for some fancy panties. But... the crotch is really narrow and doesn't cover much. You can kind of see it in the pictures above, in the pictures of the pink and green ones. The piece that goes between your legs, it's really tiny! I was hoping for undies I wouldn't even notice I was wearing. My coworker said she had the same problem. Besides that they're very soft and the waistband is very comfortable.

>Rating: 5

Happy Butt, Happy Hiking

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
medium
Height
5` 6"
Weight
140 lbs

I have strong opinions about underwear. When you're hiking up a mountain pass, through thick willows, with an 80 pound pack on your back, then very last thing I want to deal with is a wedgie. Thank goodness for the Icebreaker Siren Bikini underwear. I brought along one pair of these glorious underoos on a backpacking expedition last summer. I was keen on wool for how it holds up over time and also helps about stink. The Siren Bikinis held their shape magnificently over the six weeks in the tundra, washing at resupplies and wearing about every three or so days. I was incredibly impressed with how these held up over the expedition--barely any sign of wear upon return, and they're still my go-to pajama bottoms.

Hannah, I cannot tell you how much I enjoyed your review. So funny and also helpful. Glad your lower half is so happy in the Icebreaker Siren Bikini! All the best in your outdoor pursuits, Sydney

>Rating: 4

Everyday choice

Height
6` 1"
Weight
180 lbs

My wife is a huge fan of the Icebreaker Siren underwear. They are extremely good at wicking and stay comfortable all day. The one downside, as with other Merino Wool, is that the durability is less than would be desired. Hers have formed holes within the first 12-18 months. But she likes them enough to keep buying them anyway!

>Rating: 5

Great underware

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
xl
Height
5` 1"
Weight
155 lbs

I got these for backpacking and they are great. I will be wearing them all the time. They dried quickly when washed and when being worn. They didn't stink either which was amazing.

>Rating: 5

Super comfy

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
Medium
Height
5` 4"
Weight
133 lbs

I've used these on a couple of weekend backpacking trips so far and they've been great! Very lightweight, comfortable and they don't ride up like typical bikini underwear do (for me anyway). I'm average weight and carry my weight in my hips and legs so the medium fit perfectly.

>Rating: 4

Comfortable, quick-drying

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
Large
Height
5` 1"
Weight
140 lbs

I bought a pair of these for my Appalachian Trail Thru-Hike. They lasted the whole way - over 2,000 miles of walking in them over 6.5 months. They are extremely comfortable and always stay in place, even while walking long distances with a heavy backpack on. They are definitely odor-resistant, and one of my favorite features of these (and most merino) is the quick-drying. I was able to wash these in the morning, and a few hours later (or less), they'd be dry. After my thru-hike, I loved them so much, I bought 2 more pairs. The only reason I am giving these 4 instead of 5 stars is because these second 2 pairs have not been durable. One pair is burning a hole in the crotch, and the other pair ripped at the top seam.

>Rating: 5

Lightweight and built to stay in place!

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
Small
Height
5` 4"
Weight
130 lbs

These underwear are very comfortable to wear. The material is soft and comfortable for a variety of activities. I have been wearing them when I hit the slopes and even then, they will stay in place. They don't have the "granny panty" look or feel, so I'm a huge fan! I got these in a size Small, I'm about 130 lbs with an athletic frame and they fit great!

>Rating: 5

Love!!

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
Medium
Height
5` 5"
Weight
130 lbs

Super nice! Seriously feels like you are wearing nothing, these are the perfect fit and they stay in place. A great underwear for multiple activities as well- sometimes bikini cut can feel like diapers but not these, very flattering and functional. Enjoy.

>Rating: 5

Magic Merino!

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
Medium
Height
5` 7"
Weight
120 lbs

I have been an Icebreaker fan for years, but was never brave enough to try their underwear until recently and I shouldn’t have waited this long! These underwear might not look like much in the picture but the merino blend makes them SO comfortable and light weight! Plus the updated bikini cut is flattering on my back side while still providing enough coverage. I am definitely a believer in the magic of merino underwear and will be getting these in every color. Worth every penny!