Lululemon InvisiWear Mid Rise Thong Underwear 3 Pack Storm Teal/Blue Willow/Jumie Stripe White Vapor Nothing to see here. Virtually undetectable underneath your leggings, this smooth underwear has a comfortable fit that doesn't slip or slide. smooth, lightweight fabric Smooth, lightweight fabric is sweat-wicking, quick-drying, and four-way stretch. smooth lightweight sweat-wicking quick-drying four-way stretch features Designed for: Training Lycra®: Added Lycra® fibre for shape retention Bonded gusset: Lets you (and your lady parts) breathe easy Rise: Mid rise