The Apple Watch Ultra was designed for extreme outdoor adventures and Nomad has bands built to match this durability that are much more affordable than band options from Apple.
Nomad Apple Watch Ultra bands: Waterproof bands a rugged as the watch
Modern Band - 45mm Apple Watch - Silver Hardware, Black Horween Leather
Nomad Active Band Pro - Waterproof Leather Band on Apple Watch Ultra : r/ AppleWatch
The 5 Best Apple Watch Ultra Bands for Every Lifestyle
Nomad Black Rugged Band - For Apple Watch Series 8 41mm
NOMAD Rugged Smartwatch Band
The Best Apple Watch Bands
Nomad just made the boldest Apple Watch accessory yet, and I expect it to sell out soon
Nomad's new Rugged Case for Apple Watch features stainless steel construction & built-in FKM strap
Rugged Apple Watch Band Nomad