Speedle Women's Workout and Yoga Zip Up Stretchy Jacket With Thumb Holes Zipper closure S(Weight:&lt;94 lbs; Height:4'9"-5'3") M(Weight:94-105 lbs; Height:5'-5'6") L(Weight:106-121 lbs; Height:5'2"-5'7") XL(Weight:122-145 lbs; Height:5'3"-5'9") SIZE NOTE: We have changed the size, referenced WEIGHT and HEIGHT. Size trends to SMALL, please choose at least one size larger than your normal size.