Gloves measured by palm circumference (excluding thumb) Size GuideXSSMLXLPALM16.5 - 17.8cm17.8 - 19cm19 - 20.3cm20.3 - 21.6cm21.6 - 22.9cm CE certified for use on the roads. Supple goat nappa leather construction. Waterproof and breathable Drystar membrane....