Billabong Wetsuits - Billabong Women's Launch 5/4/3mm Back Zip Wetsuit - Black/Cherry :: Women > Wetsuits. Glideskin Collar: Comfortable. water tight collarGBS: Glued and blind stitched seams that reduce water entryFull Back Zip: For easy entry and with a water resistant YKK zipAX2 Airlite Superflex: Top quality and light-weight combined with silk touch stretch outer jersey Size: 16,10.