Best for: This stretch fabric makes these Seamless Wonder Light Leggings your go-to for the studio. And if you like light and stretchy, these are the running leggings for you... The features: Our seamless fabric has 360° stretch so whatever the challenge, they'll meet it. These Seamless Wonder Leggings have a high, soft waist that won't dig in... Our fabric: Supersoft, seamless and stretchy, this fabric is so comfy against your skin. Made from bamboo viscose blended with an innovative synthetic, Amni Sol Eco®. Where conventional synthetics take hundreds of years to degrade, Amni Sol Eco® takes five (in landfill)... Easy care - wash at 30°. 210GSM. PFA Free.. "I know we always bang on about BAM pieces being soft, but these are on another level; when I first put them on I knew I was going to love them" -Women's Running Magazine