Also known as "adjuster straps" they offer both easy length adjustment and a quick release although they are not as easy to operate as side release buckle straps. The buckle material is Acetyl (the DuPont version is called Delrin) which provides a strong, lightweight product with improved UV resistance over other plastics. Webbing is polypropylene which will not absorb water and is resistant to both mildew and rot.
revised 10/2019