Bech32 is a native segwit address format. It was introduced by BIP173 as a SegWit address. Bech32 consist of around 42 signs and start with bc1. For example: bc1qa5ndt07z2lu7r2kl6zrffw362chj74vse76lq5
Bech32 addresses are natively SegWit compatible. This means the transaction does not need extra space to put SegWit in the P2SH address.
CoinDeal supports Bech32 addresses.