Amazon.com: USA GEAR Handheld GPS Case Holster for Garmin Approach G6, eTrex 20x, eTrex 30x, Oregon 650, Monterra Wi-Fi and More Portable GPS Units with Belt Loop, Carabiner Clip, and Scratch-Resistant Neoprene :
RAM Mounts Form-Fit Cradle for Garmin eTrex 10, 20 & 30 RAM-HOL-GA48U Compatible with RAM Diamond Ball Bases
kwmobile Case Compatible with Garmin eTrex 10/20/30/201x/209x/309x - GPS Handset Navigation System Soft Silicone Skin Protective Cover - Grey
Amazon.com: Gomadic Hot Sync and Charge Straight USB Cable for The Garmin etrex 10 20 30 – Charge and Data Sync with The Same Cable. Built TipExchange Technology : Electronics