This is a UAG (Urban Armor Gear) Active Strap designed for the Apple Watch. This specific model is built for durability and is tailored for outdoor activities and sports.

Key Features:

Material: Constructed from high-strength nylon weave.

Hardware: Features custom stainless steel hardware for a secure fit.

Compatibility: Designed for Apple Watch sizes 44mm and 42mm, covering Series 1 through 6, SE, and newer models.

Durability: Markets itself as one of the strongest straps available, ideal for "rugged adventurers".

Description from Amazon:

The UAG band was developed and manufactured for Apple Watch 1 / Apple Watch 2 / Apple Watch 3 / Apple Watch 4 for 42mm and 44mm. The stylish design fits your Apple Watch perfectly and gives it a simple elegance. The stainless steel brackets will not let you down on your daily adventures. The bracelet fits almost any wrist size and is the perfect addition to any style. 44/42 mm: 152-210 mm. 40/38 mm = 133 mm - 191 mm.

Built for the rugged adventurer, our Active Strap is designed to be one of the strongest Apple Watch Straps on the market. High strength materials work together to provide the peace of mind you need to take your Apple Watch along on your most rigorous activities.

High Strength Nylon:

Made with a high-strength nylon weave to be one of the strongest straps available.

Stainless Steel Custom Hardware:

Custom stainless steel hardware provides the peace of mind you need to take your watch on any adventure.

Hook & Loop Fastener Security:

For maximum hold with minimal effort, hook & loop fasteners make it easy to secure your strap.