Gore Mythos 2.0 Long Sleeve Top Back zip pocket - to help you carry small items Flat Locked Seams - helps to reduce the chance of chaffing whilst training. Short zip with semi-lock slider and Underfalp - For easy access and convenience of putting on and taking off of the clothing. Zip Underflap and zip port - With semi-lock slider and underflap to prevent the zip from unzipping itself. Sleeve Hem with Thumbholes - For keeping the elements out.