I have a large chest (40DD) and I work from home so I mainly wear sports bras. I was wearing Champion ultra hold bras, and I really loved them but I've had them for many years and it was time for something new. Won't lie, the ads on Facebook got me and I ordered this one. This purchase was my second one I ordered after I loved the first one so much. The adjustable straps are LIFE. This bra holds me in so well. I did have to get used to the front opening, that was weird. But my husband really likes that LOL.I ordered a 2XL and it fits really well. I also like that if I lose inches anywhere I can readjust.I have been wearing shefits for a couple years. It's the first and only sports bra that secures my girls when working out. I'm 5'9" 140lbs and 34DDD. Not sure what everyone is talking about it not fitting the rib cage correctly. First step is making sure you have the correct size. (The actual website has better sizing guides) Then adjust the back or shoulders as needed.I do wish there were more color options. I heard about these bras from my sister who competes internationally in ultra extreme marathons. So even the professionals wear these! Love em!Just go to their size chart and see where you are at and measure your bust to get an accurate number.Whatever tightness you like for this bra, it will do the job ?. This bra has velcro straps and I tried to do the tightness test on this and you might get hurt. I was being an idiot but it was fun to try. The results, it’ll take your breath away and it’s uncomfortable ?But with whatever comfort you like it will do it’s job by preventing your bust to move up and down.Stays in place and it’s secured!!!Has a zipper and these attachments before you zip up for more secured.There is a small cloth that covers the zipper to prevent a rash.100% worth itI believe I got this in June of 2022, and it's now the middle of October. The first few times I wore it, I was extremely uncomfortable (i believe it's a kind of product where you need to break into it, like boots or ballet shoes). Within a week, I was used to the feel of it and actually found it quite comfortable. I have a bigger bust, so i was pleasantly surprised when I found out it worked perfectly! I've been through 20ish sports bras, and I guarantee you this is the best i've ever worn. Even after a few months, I can assure you that it doesn't stretch out or work any less than when first used!!! I also sweat excessively under there, and i've only ever seen small sweat marks!Definitely use the sizing guide they suggest. I am a heavy woman, I wear 2X and 3X tops (USA sizes). The sizing guide suggested I was a 5X bra.Of course no one wants to get larger sizes than what they THINK they need, it's a hit to your ego.What is also a hit is when you order the wrong size because you refuse to believe your boobs are anything other than your shirt size...and only one of the girls is able to fit in and you end up looking like the poster child of plastic surgery gone wrong.So, long story short, I'll be sending back my 3X and ordering a 5X.. and providing a review then when I can follow instructions properlyI have purchased many sports bra’s, but nothing comes close to this! If you are looking for a bra that will hold your chest in check so that you can move about freely in your workout, then you have found the bra my friends. I was not feeling at first paying this much money for a bra, but when I say it is worth every dime! It is worth every dime. I also am 6 months postpartum and still breast feeding, so this is a double bonus that is has the support that I need. It is very stylish and looks good as just a sport bra, if you’re going for that look. If you are on the fence, you can get off now because this is what you need in your life if you are active.I'm a 38F. Finding sports bras is a b...it troublesome. Once singed in the 3 places my girls go NOWHERE.I have 4 cons however. 1. The inner material is a tad scratchy. 2. The velcro band around the bottom rolls on just one dide and the back loop is always crooked, I can't ever keep it straight therefore it's kinda punchy. 3. I can't wear it for more than a few hrs at a time because it starts affecting my breathing by restricting lung expansion, tho this is exacerbated by my existing asthma. And 4... who in the hell actually likes putting up with those silly little ta ta inserts? I sure don't. But they make this bra fit better so I guess I have to mow. Usually I just chuck them at first sight. Pro tip: washing the bra with the inserts in in the provided mesh bag keeps them from shifting too much and coming out all together.So about 2 months ago I got a breast reduction. During my first appointment, the nurse told me to get one of these bras because they’re adjustable in the back and the straps. I would be changing size a lot due to the swelling. I have been LIVING in this thing since my surgery and I wouldn’t have been able to get through had I not bought two of these things. They are a lifesaver. I have to spend 100% of my time not showering in them and they’re pretty comfortable! A lot of support and you can make it as tight or as loose as you need it. To say these are amazing is an understatement for me because my comfort depends on them. Hopefully soon I won’t have to keep wearing them, but I know I’ll still use them for working out because they are solid!The adjustable stuff is great. Found it quite hard to get my boobs into the front fastening bit, sort of had to push them under my armpits. I would LOVE if they did an underwire for bigger sizes in a 36k and It did fit but ended up with the dreaded uniboob. Because I got a 6 luxe to fit the boob I couldn't get the rib band tight enough. Used it for running and the support was fine but not fantastic. Really wanted it to be better for the price. Once again not for a really big chest.There was no size option available when ordering. The one delivered was just way way too big and was a size 4luxe! I've only just discovered there are different sizes. Even at the tightest adjustments it was baggy around my back. I love the concept - but if you are thinking of ordering this - be aware there are different sizes maybe offered from other sellers.Love it such an amazing bra with so much support. Fast delivery comes in a bad and amazing quality materialAmazing !