Frequently asked questions

Measure around the fullest part of your chest, standing straight with the tape level and snug but not tight. Then check it against the size guide on the product page. Sizes are in inches.

Go for the larger size. Our garments are made to fit snugly, so the larger one still gives firm compression and is far more comfortable for a full day.

Firm and supportive, like a strong hug, but you should be able to breathe deeply, move your arms freely and sit comfortably. If it pinches, rolls up or leaves deep marks, it's likely too small.

Yes. If your order hasn't shipped yet, reply to your order email or email sales@gynecomastiasolutions.co.uk and we'll change it. If it's already arrived, see Returns & exchanges.

Yes. Compression wear feels different from a normal top for the first few wears. The fabric settles to your shape after a few wears and washes.

Start with a few hours a day for the first week and build up from there.

Step into it from the bottom, like a pair of shorts, and pull it up to your waist. Then ease each strap over your shoulders and smooth it flat over your chest. It's much easier than pulling it over your head, and the compression sits more evenly.

Find pull-on styles fiddly? The Firm Compression Zipper Vest fastens at the front, so it's the easiest to get on and off.

Our vests are designed to be discreet, with deep front and back necklines and thin, strong straps. Under most everyday clothing they're very hard to spot.

• A plain tee or a slightly darker shirt over the top works best.
• Very thin white shirts can show an outline, so they're worth testing first.
• Match the colour to your clothes: white under light shirts, black under dark ones.

Yes, once you're used to it. Build up over the first week, and take it off if you feel any discomfort.

Yes. They're designed to sit discreetly under dress shirts and suits, so they work just as well for work, weddings and nights out.

• Men's Compression Vest: our everyday all-rounder and the most popular choice.
• Firm Compression Zipper Vest: firmer, with a front zip that makes it easy to put on.
• Seamless Compression Shirt: a T-shirt style with no side seams for a smooth look under fitted tops.
• Seamless Tall Vest: longer in the body, good if vests tend to ride up on you.

Still unsure? Our guide Does Men's Shapewear Work? compares them in more detail, or email us and we'll help you pick.

Sports base layers are made for muscles, not for flattening the chest. Our shapewear concentrates firm compression across the chest, with support for the sides, back and waist, so you get a smoother, flatter look under clothes.

Yes. Most people like having one to wear and one in the wash. The Original Compression Vest 3 Pack and the Seamless Compression Shirt 2 Pack both work out cheaper per garment than buying singly.

Plain packaging. Nothing on the outside says what's inside, and the sender shows as "GS".

Orders placed before 2pm on weekdays are dispatched the same day. In the UK we offer Royal Mail 24 / Tracked 24 (1–3 working days), Royal Mail 48 / Tracked 48 (2–5 working days) and guaranteed next working day delivery (Royal Mail Special Delivery) when you order before 2pm. The options at checkout depend on your basket total. We ship internationally too.

Full details are on our Delivery Information page.

Once your order's on its way, you'll get a shipping email with your tracking number. Special Delivery and Tracked 24/48 are tracked all the way; Royal Mail 24 and 48 tracking updates once delivery is attempted. Can't find the email? Check your junk folder, or email us with your order number and we'll check.

You have 30 days to return items. Trying it on at home to check the fit is absolutely fine. For a full refund, it just needs to come back in as-new condition, so not worn out and about and not washed. Full details are on our Return Policy page.

Email sales@gynecomastiasolutions.co.uk with your order number and the size you need, and we'll take you through it. Trying it on at home is fine. Just check the fit before you wear it out or wash it, so it can come back in as-new condition.

• Cool wash (30°C or below) on a gentle cycle, or hand wash.
• Mild detergent and no fabric softener, which breaks down the stretch.
• Hang to dry. Don't tumble dry, because the heat is what wears out the compression.

With cool washes and air drying, it'll hold its compression for a long time. Rotating two or more also helps, because each one rests between wears.