The Billabong Synergy 4/3mm wetsuits for girls is great if you want to step it up from a 3/2mm summer wetsuit. It's a premium wetsuit featuring furnace lining for added warmth, glued and blindstitched seams to minimise water getting in and an easy back zip entry.  Who is it for: This wetsuit is great for summer time surfing, windsurfing, kayaking, paddleboarding, wingfoiling and more. Also suitable while the water is still warm in early Autumn and will be a warmer choice than a 3/2 wetsuit. Perfect if you are looking to stay in the water that bit longer and want to experience a lighter wetsuit than your winter 5/4mm thickness. Features: Premium performance Fabric: Superflex jersey fabric Construction: Triple glued and blind stitched sealed seams Machined applied Superflex neo tape internally Large furnace lined front and back panel for added warmth Back zip entry