The best clothing to wear to a reformer Pilates class is something breathable, elastic and supportive. Reformer Pilates classes usually take place in small rooms with around 10 people per class. The air condenses very quickly, creating a hot and humid environment. If you’re dressed in a very tight outfit without elastane you won’t have enough mobility to do the workout comfortably.
In reformer Pilates, all movements are dynamic, with a great emphasis on posture. Straight or tight-fitting garments will make it easier for you to control the poses of your hips, back, or arms, especially if you are a beginner.