The Women&';s Core Lightweight Bottom is the first building block for comfort in mild to cool temps. Our lightweight 200gm Signature Merino Blend ensures superior breathability, temperature management and unrestricted movement with 4-way-stretch, while melding the luxuriously soft on-skin properties of rayon from bamboo and the unrivalled odour resistance of merino wool. A naturally better blend and our bestselling base layer bottom for a reason.