What is bSoft Jersey? bSoft Jersey is a stretchy silky soft material that feels light against your skin. This material is 95% bamboo viscose, 5% Elastane. 3/4 sleeve wrap robe with inner tie and attached outer belt hits above the knee for a flirty fit. Machine wash cold with like colors. Non-chlorine bleach only. Tumble dry on low heat. Sizes run as: Small/Medium (2-8), Large/X-Large (10-18).