Slip-on Wonder Jazz Shoe Allure the crowd in the Wonder Jazz. The top feature is the two staged, internal insert that improves comfort, cushioning and traction. This gives the dancer optimal control for sudden stops in a fast, competition-style routine. Low profile elasticized top line reflects the contours of the foot to create a stylized fit. Folded stitched edge on the upper is for strength while also creating a sleeker appearance overall.Product Features:Slip-on, split-soleBurro leather with duplex stretch insertDuplex stretch textile hugs the arch100% microfiber lining for breathabilityEVA sole and heelElasticized, lower top line reflects contour of foot and gives a glove-like fit from heel to toeTwo staged, internal insertLow sidesPleated toe for ballet fitWomen: Begin 1/2 a size up from street shoe size. Men: Begin 2 sizes up from street shoe size.