Please be sure to read the profile! These arm covers are perfect for sun protection and gardening! They are made of polyester sheer fabric (the polka dot part is see-through) and cotton double gauze for the gray part. They are breathable and have elastic at the arm and wrist to prevent slipping. You can replace the elastic yourself if it's too tight or too loose! (Only on the upper arm side) Length: 46cm Cylindrical shape: 36cm Elastic: 1cm x 21cm I hope you're interested (o^ - ^o)