- Description Extra long leggings. A classic Kowtow Building Block. - Elastic waistband - 95% certified fairtrade organic cotton 5% elastane jersey Building Blocks are timeless basics designed to be paired with collection pieces or worn as separates. Measurements XXS XS S M L XL A 50 55 60 65 70 75 B 103.5 104 104.5 105 105.5 106 C 18 19 20 21 22 23 A – Waistband B – Outleg C – Leg Hem Width All measurements are in centimetres (cm). There may be some variation between measurement chart and actual garment. Zhoe is 175cm/5'9" tall and is wearing size S.