Pawtec Neoprene Protective Sleeve for Apple Watch 38mm to 44mm Series 4, 3, 2, and 1 - Protective Storage Carrying Case with Dual Zipper for Charging (Black) Compatible with all 38mm to 44mm Series 4, 3, 2, and 1 Apple Watch models. Can also fit other strap watches around the same size as well such as Fitbit, Mistfit, Samsung, LG, Motorola, Pebble, Garmin, Timex. Well-Constructed sleeve made with neoprene material with interior fully lined with super-soft brushed terry. Convenient design with dual aluminum zippers allows protection while leaving a gap for a charger to be used. Portable and lightweight. Small and slim to keep in a backpack, bag, purse, or briefcase. Top Notch Customer Service - Just contact Pawtec's friendly customer service. 1 Year Limited Warranty.