Chase Twill Overall - Oak 98% Cotton 2% Elastane Why cotton? Cotton is well known for its ability to breathe while keeping the body nice and warm. We combine this gorgeous cotton with elastane, which offers a high degree of stretchability. We source only the finest quality cotton to ensure we are providing your child with nothing but the best. Our cord & denim ranges are made from stunning rich dye colours and we suggest when you first purchase to please wash before wear and with dark colours especially to remove any excess dye.