Fitness Clothing Guide
Whether you enjoy an occasional yoga class or you participate in rigorous workouts several times a week, investing in good workout clothing will make a big difference in your comfort level. It's not just about looking good -- it's also about fit and performance. Start making your clothes work as hard as you do. From the 24-hour gym to your favorite local running trail, we’ll cover all the essentials you'll need to help you stay motivated and feeling your best.
  • Basic Fitness Clothing

    Although you may not even realize it, working out in cotton shirts and shorts will end up weighing you down with extra moisture. Of course, all that sweat buildup doesn’t make for a very pleasant feeling, either. Investing in moisture-wicking, fast-drying workout clothing is a must.

    Synthetic fabrics like polyester and spandex are durable, lightweight, breathable and quick-drying. Superfine merino wool garments from brands like Icebreaker and SmartWool are also excellent options. These high-performance fibers will help regulate body temperature by transporting sweat away from your skin. In the heat, this helps keep you cool. When your workout is over, you won't catch a chill due to damp clothing. Garments made from these materials are also excellent for layering, which allows you to customize your comfort level on the fly when you’re exercising outdoors. To create a well-rounded fitness wardrobe, you’ll want to invest in a variety of garments from the following list:

    Workout Shirts & Tank Tops

    Workout shirts and tanks are a big step up from a basic cotton T-shirt. Most have a breathable, jersey-like weave designed to wick moisture and maintain air circulation. Workout shirts come in numerous styles, from T-necks to tank tops, so they can be worn during almost any activity. Compression shirts make a very sleek, moisture-wicking base layer under looser-fitting tops to offer support and prevent underarm chafing.

    Workout Pants, Shorts & Bottoms

    Exercise pants and running pants are lightweight, breathable and allow for a full range of motion. These pants should offer a snug fit with ample stretch or a looser fit for easy strides. Zips or snaps at the ankles make getting in and out of your pants easier. Some track pants have snaps that go all the way up either side, allowing you to layer them over shorts and remove them without taking off your shoes.

    Athletic shorts come in a wide variety of styles, lengths and materials. For high-intensity activities like running or cross-training, look for shorter, lightweight shorts with ample stretch for freedom of movement. Some running shorts also have a built-in brief for coverage. Shorts with longer inseams and a jersey-like feel are a good choice for less aerobic activities, like lifting weights. Compression shorts and tights are made of extremely stretchy, moisture-wicking and breathable fabrics like polyester and spandex. Compression clothing is designed to hug the body, minimize chaffing and support muscles.

    Quick Tip: Avoid washing most workout wear with fabric softeners. They may decrease the wicking abilities of the synthetic fabrics.


    Athletic socks from brands like SmartWool and Brooks are made from lightweight, wicking materials like CoolMax® polyester to keep your feet dry and prevent blisters. Padding in the heel and ball of the foot provides cushioning and protection. Features like reinforced arches lend extra support. Merino wool and wool-blend socks are good for outdoor activities in cooler weather. Always avoid cotton socks for working out. They wick poorly, dry slowly and usually don’t offer much, if any, cushioning.

    Sports Bras

    Different sports bras are designed with different activity levels and cup sizes in mind. More intense activities call for a compression or encapsulating bra with the highest level of support. Some shimmel tops are made with a built-in sports bra, which makes them a great choice for low-impact activities like Pilates or yoga. Shimmels are ideal for women who want the support of a sports bra with the added coverage of a tank top in a single garment. For more detailed info on choosing a sports bra, check out our Sports Bra Fit Guide.


    The type of swimsuit you wear for lap swimming or competitive swimming is different than a suit you might wear to the beach. A performance swimsuit should fit snugly to reduce drag. There are three common choices for men’s swimwear:

    • Briefs are form-fitting, brief-cut suits designed for lap swimming and racing.
    • Boxer briefs are snug with a slightly longer cut for a little extra coverage.
    • Swim trunks and board shorts are loose-fitting and cut longer to cover the thighs. The extra fabric on a pair of swim trunks will increase drag in the water, making them less ideal for swimming. But they’re still a great choice for surfing, paddle boarding or playing beach volleyball.

    There are two main options for women’s swimwear:

    • One-piece suits with a racerback, also called performance swimsuits, allow for optimal freedom of movement and assurance that straps will stay put.
    • Two-piece suits designed for aerobic activities typically have a cropped top or a longer tank for extended torso coverage. These are good for water aerobics and beach volleyball, but are not as streamlined as one-piece swimsuits, making them less ideal for swimming.

    For more detailed information on swimsuit styles and fit, check out our Swimwear Guide.

  • Cold-Weather Fitness Clothing

    To keep your core temperature consistent when you're exercising outdoors in colder weather, you’ll want to layer your clothing. This will allow you to shed layers as needed to prevent overheating during aerobic activities. Layering typically involves three types of clothing: a lightweight base layer, an insulating mid-layer, and a water-resistant outer layer. No matter which activity you're participating in, your layers need to be versatile and efficient. It’s much easier to wear several lightweight items that can be removed as weather conditions or activity levels change.

    Base Layer

    For your base layer, look for garments made from lightweight, wicking fabrics like polyester, merino wool, CoolMax®, Polartec® PowerDry® and Capilene®. Many base layers also have some amount of spandex added for flexibility.

    Mid Layer

    Fleece vests and lightweight fleece pullovers are two good examples of insulating middle layers. Wearing a fleece vest or pullover will help maintain your body temperature by trapping warm air against your skin.

    Outer Layer

    Your exterior layer should provide wind and moisture protection, without adding too much weight or bulk. Look for a water-resistant, breathable shell that is designed for activities like running or cycling. Windstopper® jackets are also a good option for blustery days. When more severe weather is a possibility, consider a seam-sealed, waterproof breathable shell. Lightweight Gore-Tex® shells are a good choice for hiking, trail running, climbing, skiing and mountain biking in inclement conditions. Of course, Gore-Tex® isn’t your only option for protection in harsh weather. Other brands, like Omni-Tech® and MemBrain®, are also excellent.

    Hats & Gloves

    You always need to pay attention to your head and extremities in cold conditions. Carry along a fleece or lightweight wool hat for winter workouts. Gloves are also a must-have item for cold weather exercise. For detailed information on dressing for cold weather, check out our Layering Guide or Head-to-Toe Winter Dressing Guide.

    Athletic Shoes

    Determine the type of shoes you'll buy based on your exercise routine. If you're a runner, selecting an appropriate pair of running shoes is an absolute must. If your runs venture off the paved roads and sidewalks, a pair of trail running shoes will provide added support and traction. Not sure if you need cushioning running shoes or motion control running shoes? Check out our Running Shoe Guide for detailed information on fit and styles.

    For court sports, like racquetball and tennis, you'll want a pair of lightweight tennis shoes. Because court sports require the body to move forward, backward and side-to-side, court shoes are subjected to heavy abuse. Look for a court shoe with a sturdy sole and stable heel to deal with multi-directional forces. Cross-training shoes are the most versatile athletic shoes available. They meet the basic comfort, cushioning and stability requirements for most workouts, including aerobics, weight training, elliptical machines, stair machines, etc.). Cross-trainers should have wide, stable outsoles that provide support and a moderate amount of cushioning.

  • Fitness Accessories


    The sun's rays are harmful to your eyes, so protect those peepers when you're training outdoors with a pair of sport sunglasses. To meet the various demands of both recreational and competitive athletes, many eyewear brands offer lightweight, flexible sunglasses made of durable materials that feature grip components and high-tech performance lenses with 100% UV protection. Check out our Sunglasses Guide to help you find a pair you can wear for various outdoor activities.

    Water Bottles & Hydration

    Whether you need a basic water bottle to take to the gym or a compact hydration pack for long-distance trail running, there are many options to choose from. Water bottles designed for running, for example, often feature molded hand grips or come in "holsters" that attach to your wrist. For hands-free hydration without the bulk of a full-sized hydration pack, you might consider a low-profile hydration belt. Hydration belts feature multiple bottles that you can fill with water or sports drinks, and some also include a holder for energy gel and other nutrition.

    Caps & Visors

    Whatever headwear you choose, just make sure it's lightweight and breathable. For running, tennis and other outdoor sports, visors and caps with some amount of mesh are ideal. Look for a moisture-wicking headband to keep the sweat from running into your eyes. Built-in sun protection is also a good idea.

    Sports Watch

    Besides keeping track of time, many sport watches track mileage, lap times, etc.

    Heart Rate Monitor

    A heart rate monitor will help you stay in your target heart rate zone for optimal training.

  • Fitness Activities

    If your goal is to lose weight and get healthier, it may help to know which activities burn the most calories. The chart below shows calories burned per hour for 15 different exercises, broken out for three weight classes. Note: These figures were gathered from a calculator available at and are offered here as estimates only. Actual calorie expenditure will vary slightly based on age, gender, health, exercise intensity and other factors.

    Activity Person A (140 lb.) Person B (180 lb.) Person C (220 lb.)
    Rock Climbing (ascending rock) 699 898 1098
    Running (6 mph, 10-minute mile) 635 816 998
    Stair Climber 572 735 898
    Elliptical Trainer 572 735 898
    Cycling (12-14 mph) 508 653 798
    Tennis (singles) 508 653 798
    Cross-Country Skiing (4-5 mph) 508 653 798
    Rowing Machine (moderate) 445 572 699
    Racquetball (casual) 445 572 699
    Skating (roller blading) 445 572 699
    Downhill Skiing (moderate pace) 381 490 599
    Hiking (moderate terrain) 381 490 599
    Aerobics (low-impact) 318 408 499
    Walking (3 mph) 210 269 329
    Power Yoga 191 245 299

    Always consult a physician or other qualified health provider prior to beginning any new exercise program to assess your health and reduce the risk of injury.

    For more information about creating a working plan, setting fitness goals, and tips for staying motivated, be sure to visit our Fitness Guide.