Icebreaker MerinoWomen's Siren, Wireless Bra

Originally, I purchased this in a size medium to use for camping. One year later, it’s my favorite bra and is replacing my no-longer-needed-but-oh-so-comfortable maternity bras, my sports bras (more on that below), and even my standard underwires.The adjustable straps are nice for a more supportive fit. I don’t mind the lack of underwire and find the support comparable to a low to medium intensity sports bra (for reference, I’m a 32DDD, 30 inch beneath bust and 35.5” around fullest part of bust). It breathes beautifully through all four seasons (and I’m in the Midwest where the summer humidity and heat is intense).After cleaning in the washer/dryer many times, it didn’t fade or shrunk. The white elastic in the back has started to “pling” out, relaxing the fit substantially. Because of this, it was starting to look a little shabby, so I purchased a second one through Amazon in the same size and have treated exactly the same as my first.Within a couple of washes, it shrank and my chest pops out in the middle, creating that awful double boob. Very disappointing.I teach yoga and have a frequently grabby toddler, so I cannot wear the second one when I teach with an open neckline top because I will flash all of my students (yes - I learned this the hard way).I recently discovered that the bras have a pocket for nipple covers on the inside, which is a nice plus, but it completely changes the sizing. If you plan to use nipple cover inserts or nursing pads, definitely size up.All things considered, I like these enough to continue purchasing, but I will definitely size up to a large.

This was a really nice product but it runs small. There are no trades so just returned it.

I would definitely say these are for smaller chested women. I'm a 36B, and ordered a medium - which is what I should order according to the sizing chart. The band around was uncomfortably tight. I went ahead and ordered the Large - much better and the cups weren't too big for me - it was an unusual surprise. This fitting was right out of the box.

This was my first merino undergarment purchase and I was not disappointed! Very comfy, not at all itchy. I ended up returning this one and purchasing the nude color so that I could wear it with more of my athletic wear, which tends to be lighter colored. The bra is so much nicer than 100% man-made material. It breathes incredibly well and dries very quickly. No stink - hooray!! Oh, there is a pocket for inserting modesty pads, too! Perfect!

I wear a 38D and ordered an XL. This style is really better fitted for an A or B cup. It doesn’t offer much support for high impact activities and isn’t the most flattering fit. All that said, the fabric is absolutely divine. It’s soft, breathable, and extra comfy. It does not itch at all. Despite it not being the best fit I’m still very impressed with this bra. I XC ski in sub zero temperatures and constantly struggle with getting chilled immediately after skiing due to a sweaty bra that won’t wick. This bra actually wicks the moisture and doesn’t leave me freezing. I’m sold on icebreaker products and will be trying their more traditional sports bra design.

I really want to like this bra more and maybe the more I wear it the better it will work but my biggest issue is how itchy it feels :( I washed it to see if that helped but it’s just not comfortable to wear all day. I love the low cut design for v necks with it’s thin straps. I’m not going to return it because I got it on a pretty good sale day and hoping it will soften up and not be so itchy eventually the more I wear and wash it.

Bra Size: 32 DOrdered: SmallFit: Perfect. Band fit well, and is elastic so very flexible. The straps could be adjusted to provide a little bit more support/lift.I purchased this for my 2020 Thru Hike of the Appalachian Trail. This bra lasted from Georgia to Maine and I am still using it. I wore this bra every single day during my thru hike, and I slept in it most nights too. It is lightweight and dries fast. I had a couple days during my hike that I got absolutely soaked. On days like this, I found that keeping it on to sleep would help my body heat dry it out by morning. I may have smelled horrid, but this bra never did. I wanted this bra to double as a swim suit so I could comfortably swim in streams, lakes, ponds... etc. I paired it with a black pair of exofficio underware and it worked perfectly.While this bra worked great for hiking, walking and everyday use, it is not a bra I would recommend running in. There just isn't enough support for that kind of activity.Additionally, there is minimal padding, really it's just extra fabric. I didn't mind this because I needed it to dry quickly, but there isn't enough padding to hide a cold nipple. Again, I was in the woods, so this really didn't bother me, and with looser fitting clothing it wouldn't be an issue.I will always have one of these in my closet. perfect for hiking, travel and everyday use.

The band is a tad bit too tight (I bought a small for 34b) and it leaves a little mark by the end of the day. My shoulders are on the narrower side, so the straps also slip off when I run. If I tighten the straps more, they will stay in place, but I find that they end up stretching out a little at a time and then they slip off my shoulders again a couple of days later. I would appreciate a design with a criss-cross back, or perhaps better elastic on the straps so they don't keep stretching out.

Always get sore underneath bra when hiking. Although in no way very supportive (no good for running) this bra has prevented me from being very sore. OK if you don’t care what you look like as doesn’t give any shape. I bought large in line with sizing, but cups too small but OK around back. Had I bought extra large it would have been too big in the back. So improvements need to be made.

Perfect. Does not smell of anything even after wearing it for 5 days hiking! Ideal for the Camino de Santiago de Compostela!

Comfy, wicking in hot weather and has enough support not to make a small busted girl look like a boy.

Comfy and easy to wear. Did itch a little the first few wears but it is fine now.

Good quality fabric, but the cup was not big enough for an E Cup.