Generally speaking, comfortable clothing is key as this will help you move freely without any restrictions or discomfort during the session. Also make sure that whatever outfit you choose does not restrict your breathability or limit your range of motion. You may want to avoid wearing baggy clothes which can impede correct form while performing exercises. Additionally, opt for closed-toe shoes if possible so that you have greater stability while doing the movements; although depending on the type of Pilates class some instructors may allow socks instead.   So there you have it - when attending a pilates class, dress comfortably and consider choosing an attire that allows maximum freedom of movement as well as helping maintain good alignment and posture throughout each exercise!