The robust Alpine Loop is made from two layers of fabric that are woven together into a continuous band without seams. High-strength yarns reinforce the loops on the top, and the corrosion-resistant titanium G-hook slides easily into the eyelets, ensuring a secure fit. Designed for the Apple Watch Ultra, the Trail Loop, Alpine Loop, and Ocean Band fit perfectly with the 49 mm case. The bands are also compatible with the 44 mm and 45 mm cases.