Between the heat, humidity, and skin-to-skin friction, the wrong bra can turn a great outfit into an uncomfortable experience by noon. The right summer bra makes all the difference.In this guide, we’ll walk you through exactly how to find your ideal summer bra. We compare breathable fabrics, the best bra styles for hot weather, tips for preventing underboob sweat, and Soma’s top picks for every wardrobe need.

• How to Find the Best Summer Bra: Shopping Checklist

• What Are the Most Breathable and Moisture-Wicking Materials for Summer Bras?

• Our Top Picks: 7 Best Bra Styles for Summer

• Tips for Preventing Underboob Sweat and Skin Irritation in Summer

• Summer Bras: Frequently Asked Questions

• Beat the Heat with the Best Bras for Hot Weather

How to Find the Best Summer Bra: Shopping Checklist 

As you perfect your summer wardrobe, here are some tips to follow when shopping for bras:

• Breathability: Fabrics like mesh and lightly lined designs make sure you don’t overheat. Look for open-weave construction or perforated cups that allow air to circulate freely against the skin. 

• Comfort: Whether you’re looking forward to relaxing or your schedule is packed with plans, comfort is key. Look for soft fabrics, adjustable straps that don’t slip, and supportive designs.

• Versatility: For most of us, our summer wardrobe includes breezy clothing, lower and open-neckline tops, and the like. Get bras that will work with your clothing, not the other way around.

• Moisture management: The best summer bras wick away sweat from the skin. Nylon, spandex blends, and moisture-treated microfiber move moisture away from the body, keeping you drier for longer. 

• Fit: Heat causes slight swelling in the body, which can make a bra feel uncomfortable. If your bra has been leaving marks or feeling tighter than usual, it may be time to reassess your size for the season. 

Not sure where to start? Soma offers expert fittings at our boutiques, so you can find your perfect summer fit with the help of a knowledgeable stylist. 

What Are the Most Breathable and Moisture-Wicking Materials for Summer Bras?

A truly breathable summer bra depends on what it’s made of. The best fabrics actively pull moisture away from the skin and allow air to circulate, rather than trapping heat next to the body.

Mesh

Mesh has an open, net-like weave that creates maximum airflow between the fabric and skin, making it one of the fastest-drying materials available. Look for bras with mesh panels or mesh cups for targeted ventilation where you need it most.

Nylon and spandex blends

Nylon is naturally moisture-wicking, lightweight, and quick-drying, while spandex adds the stretch and shape retention needed for a comfortable, secure fit throughout the day. Many of Soma’s wireless bras and sports bras feature nylon-spandex blends for this reason.

Bamboo and rayon

Bamboo-derived fabrics (often labeled as bamboo rayon or bamboo viscose) are naturally soft, breathable, and thermally regulating. Bamboo fibers also have natural moisture-wicking properties, making them a popular choice for sensitive skin.

Modal

Modal is a semi-synthetic fiber derived from beech tree pulp. It’s exceptionally soft, lightweight, and breathable, with excellent moisture management. Modal bras tend to feel silky against the skin and maintain their softness even after frequent washing.

Cotton

Cotton is a classic natural fiber that’s gentle and lightweight, and a great choice for everyday summer bras. However, it’s worth noting that while cotton absorbs moisture well, it doesn’t wick it away as efficiently as technical synthetics. During heavy sweating, cotton bras can stay damp longer, which may lead to discomfort or chafing. 

Our Top Picks: 7 Best Bra Styles for Summer 

We’ve put together a list of the best bra styles for summer to help you find summer-friendly bras that keep you comfortable and confident.

Bralettes 

Bralettes are one of the most popular summer bra choices. They’re wire-free, lightly lined or unlined, and typically made from soft, stretchy fabrics that move with your body. Bralettes are best for low-impact days, lounging at home, casual outings, and pairing with breezy tees or tank tops. 

Lightly lined bras 

In summer, you want the least amount of fabric on you as possible–or at least the lightest. Lightly lined bras offer the coverage and shape you need without adding extra bulk. Unlike heavily padded styles, the thin lining provides a smooth silhouette without creating an insulating layer that traps heat. Wear lightly lined bras under fitted tops and button-downs when you want a polished look without the extra weight of traditional padding.

Bandeaus 

Say goodbye to red marks from straps and unwanted tan lines with bandeaus. These strapless, wide-band bras sit flat across the chest and eliminate the shoulder strap entirely. They’re also lightweight and typically made from soft, stretchy fabric. Wear them with off-shoulder tops, tube dresses, halter necklines, and anytime you want a clean, strap-free look under summer outfits.

Unlined underwire bras

For those who want structure and support without sacrificing breathability, unlined bras with underwire are a summer standout. Understanding the difference between lined and unlined bras comes down to the foam padding that traps heat. Removing it allows significantly more airflow through the cup. Unlined underwire bras are best for summer dresses and blouses.

Mesh and lace bras 

Mesh and lace bras combine style with serious summer functionality. Mesh’s open weave allows maximum airflow, while lace’s delicate structure lets skin breathe. Both materials are lightweight and tend to dry faster than heavier fabrics. They are best with sheer or lightweight summer tops, layered looks, and for anyone who wants their bra to feel a little luxurious even in the heat.

Strapless bras  

Strapless bras are a summer wardrobe essential. Whether you’re wearing an off-shoulder maxi, a sundress, or a sleeveless top, a well-fitting strapless bra keeps you supported without any visible straps. Look for strapless styles with silicone grip bands along the top and bottom edges to prevent slipping.

Sports bras 

For active summer days, a sports bra engineered for moisture management is your best bet. Look for styles made from performance fabrics like nylon-spandex blends with mesh panels, which wick sweat away from the skin and dry quickly. Racerback designs also help keep straps out of the way and improve shoulder mobility. 

Tips for Preventing Underboob Sweat and Skin Irritation in Summer 

The best defense against underboob sweat and skin irritation is choosing a bra that lifts and separates, creating space between skin surfaces to reduce friction and moisture buildup. A bra that holds the breasts apart rather than pressing them together decreases the conditions that cause chafing, rashes, and discomfort in heat.

Here are more tips to stay comfortable all summer long:

• Choose light colors: Just like clothing, dark bras absorb more heat from sunlight and artificial warming. 

• Rotate your bras: Elastic degrades faster when exposed to salt from sweat and frequent washing. Give your bras at least 24 hours to rest between wears so the elastic can recover its shape and tension. Rotating between two or three summer bras extends their lifespan and keeps them performing better.

• Consider fit adjustments: If your bra feels tighter than usual in summer, don’t assume it no longer fits. Try fastening your bra on a looser hook setting, or visit a Soma boutique for a professional fitting to explore whether a slight size adjustment would improve summer comfort.

• Prioritize softness under the band: In summer, any rough seam or stiff fabric against sweaty skin gets irritating fast. Choosing soft bras with smooth, flexible bands and minimal hardware reduces friction and keeps skin comfortable even on the most humid days.

Summer Bras: Frequently Asked Questions

Are unlined bras better than padded bras for summer?

Yes, in most cases. Unlined bras allow significantly more airflow through the cup since there’s no foam padding acting as an insulating layer. This makes them cooler and quicker to dry in humid conditions. Padded bras trap heat between the padding and the skin, which can lead to discomfort and increased perspiration. Light bras for summer offer a middle ground.

What is the best summer bra for large busts?

For larger busts, the best summer bras balance support with breathability. Unlined underwire bras with mesh or lace cups provide lift and structure. Wide, cushioned straps and a broad underband help distribute weight comfortably. Look for styles with adjustable straps and multiple hook-and-eye closures for a customizable fit. 

Why does my bra feel tighter in hot weather?

Heat causes mild swelling throughout the body, which can make a bra that fits perfectly in cooler months feel snug or restrictive in summer. If your bra is leaving marks or feeling uncomfortably tight during warm weather, try fastening on a looser hook setting or visit a Soma boutique for a seasonal fitting.

Beat the Heat with the Best Bras for Hot Weather 

Whether you're stocking up on warm-weather staples or shopping for your first wireless bra, knowing the types of bras and what each is designed to do makes finding the right fit a whole lot easier. Soma® carries a wide variety of summer bras that are thoughtfully designed to address an array of women’s wardrobe needs. This year, we want to make sure you’re all set with summer-friendly bras that keep you comfortable and confident.