BitLox hardware wallets are credit card sized and 4 mm thick, with 2" e-paper displays, USB, Bluetooth, metal cases and full on-board keypads. High security and total anonymity are the concepts behind this wallet.
Segwitaddress.org is an open source bitcoin paper wallet generator that utilizes Segregated Witness (SegWit) Pay To Witness Public Key Hash (P2WPKH) addresses and transactions. Segwitaddress.org uses the BitcoinJS library. All of the functions on this page can be ran offline.
A Linux distribution designed to securely handle bitcoin wallets. BTC Vault is based on Slax and thus contains a full Linux installation including the KDE desktop environment and the Firefox webbrowser.
Also, BTC Vault includes the Electrum bitcoin client and the MultiBit bitcoin client that you can use to manage your coins.