Devoteewear | Gym Clothes & Fitness Apparel

アクティブウェアで正しいサイズを見つける方法

アクティブウェアで正しいサイズを見つける方法

By Devoteewear | Gym Clothes & Fitness Apparel | Published: 2026-08-29

Category: Buying Guides

ジムウェアのサイズの測り方と、ぴったりフィットするウェアの選び方をご紹介。トップスやボトムスなど、アイテム別のサイズ選びのコツも解説します。

Getting the right fit in activewear can be the difference between a comfortable workout and one that leaves you distracted. Whether you're buying your first pair of leggings or a new sports bra, understanding how to measure for gym clothes is essential. In this guide, we'll walk you through the steps to determine your correct size, so you can shop with confidence.

We know that sizing can vary between brands, which is why we've put together this activewear size guide. By taking a few simple measurements, you'll be able to choose the right size for your body and ensure your workout clothes fit well and perform at their best.

Why Accurate Measurements Matter

Accurate measurements are the foundation of a good fit. When your activewear fits properly, it provides the right support, allows for full range of motion, and prevents chafing or discomfort. Ill-fitting clothes can not only hinder your performance but also increase the risk of injury.

Additionally, well-fitted activewear enhances your confidence. Whether you're hitting the gym or running errands, clothes that fit well look better and make you feel better. Taking a few minutes to measure yourself can save you the hassle of returns and exchanges.

  • Always measure in your undergarments or fitted clothing for accuracy.
  • Use a soft tape measure and keep it snug but not tight.

How to Measure Your Key Body Areas

To determine your size in most activewear, you'll need three key measurements: bust, waist, and hips. For bottoms, you may also need your inseam. Here's how to do each one correctly.

Bust: Measure around the fullest part of your chest, keeping the tape measure level. Waist: Measure around the narrowest part of your waist, usually just above your belly button. Hips: Measure around the fullest part of your hips and buttocks. Inseam: Measure from the top of your inner thigh down to your ankle bone.

Once you have these numbers, compare them to the brand's size chart. Remember that if you fall between sizes, consider the fabric and the intended use. For example, compressive fabrics may run small, while relaxed fits may run large.

  • For sports bras, also measure your underbust, just below your breasts.
  • Keep your feet together when measuring hips for a more accurate reading.

Understanding Size Charts and Fit Preferences

Size charts are your best friend when buying activewear online. They provide specific measurements for each size, so you can match your numbers to the right size. However, every brand is different, so always check the specific chart for the product you're interested in.

Fit preferences also play a role. Some people prefer a snug, compressive fit for high-intensity workouts, while others like a relaxed fit for casual wear. Consider how you plan to use the garment. For example, a pair of leggings like the All Day Heavyweight Sweatpant might be designed for comfort and a looser fit, while the Buttercake Sports Bra is meant to be supportive and snug.

Buttercake Sports Bra
Buttercake Sports Bra

When in doubt, read customer reviews for insights on how a product fits. Many shoppers mention whether an item runs true to size, small, or large.

  • If between sizes, decide based on your preference: size down for a tighter fit, size up for more room.
  • Check the fabric content: materials with spandex offer more stretch and may be more forgiving.

Sizing Tips for Different Types of Activewear

Tops and Bras: For sports bras, the band should be snug but not restrictive, and the straps should not dig into your shoulders. For tops like the Training Oversized T-Shirt or the Premium Bamboo Tank, consider the intended fit. An oversized tee may be designed to be loose, while a tank should fit closer to the body.

Bottoms: For shorts like the X-Series Short or the Ultra Light 6 Short, pay attention to the waistband and the length. For leggings and joggers, such as the Ultimate Comfort Sweatpants, the waist should sit comfortably without gaping, and the length should be appropriate for your height.

Outerwear: When choosing a hoodie or sweater like the Spice Sweater or the DEVOTEE CROPPED HOODIE, consider the layering. If you plan to wear it over other clothes, you may need a larger size.

  • For high-waisted leggings, measure your waist at the narrowest point and compare to the chart's waist measurement.
  • For cropped styles, check the length to ensure it hits where you want.

Common Sizing Mistakes to Avoid

One common mistake is relying on your usual clothing size. Activewear often fits differently than regular clothes, so always use measurements. Another mistake is ignoring the fabric. A cotton t-shirt may shrink, while a polyester blend might not.

Also, don't forget to consider the style. A scrunch bum short may have a different fit than a traditional short, so check the product description for specific details. And if you're between sizes, don't assume you need to size up or down—read the reviews and see what others with similar measurements have said.

  • Always measure yourself before each purchase, as your body can change.
  • Avoid buying activewear that is too tight, as it can restrict movement and cause discomfort.

Finding the right size in activewear doesn't have to be a guessing game. By taking accurate measurements, understanding size charts, and considering your fit preferences, you can choose pieces that feel great and perform well. Remember to check each product's specific size chart and read reviews for additional insights. With these tips, you'll be ready to build a workout wardrobe that fits you perfectly.

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