1.Material: High quality elastic mesh<br />2.Weight around: about 30g<br />3.Size:S，M，L，XL <br />S:mouth width 8.8cm， UK size  2-3，US size 4.5-5.5<br />M:mouth width 9.4cm，UK size 3.5-4.5，US size 6-7<br />L:mouth width 9.5cm，UK size 5-6，US size7.5-8.5<br />XL:mouth width 9.6cm，UK size 6.5-9，US size 9-11.5