Based on this product's specifications, here are some alternatives and similar models
Peak Design Outdoor Sling waist bag 7.5L Grey White Unisex
Summary description:
The Peak Design Outdoor Sling waist bag is made from durable fabric, mesh, nylon, and polyurethane. With a volume of 7.5L, it features a unisex design in grey and white. Ideal for outdoor activities, it combines functionality with style. The bag is certified by bluesign and BAS-7-CD-1, ensuring sustainability and quality.