Watch Straps

These are likely Delugs Sailcloth Signature Straps, or a similar style of durable watch band featuring quick-release spring bars. Delugs is a Singapore-based brand specializing in handcrafted and quick-release watch straps in various materials and colors.
Product Information
Brand: Delugs (likely)
Material: The ones pictured appear to have a canvas or woven texture, which Delugs replicates in their FKM rubber “Sailcloth” collection for durability and water resistance without the upkeep of traditional canvas.
Features: They incorporate quick-release spring bars, which allow for easy, tool-free strap changes.
Availability: These types of straps are available in many different lug widths, typically from 16mm up to 26mm, to fit a wide range of watches.
Colors: The image displays a variety of colors, including light blue, black, brown, grey, dark blue, olive green, orange, and white.