The miR Air Flow Weighted Vest is a mid-market adjustable vest offering a 40 lb test weight (available 20–60 lbs) with a zipper closure option for quick weight adjustment. The vest features a mesh back panel for breathability and is designed for walking, rucking, and general fitness work.

Key attributes:

Adjustable weight system via removable weight compartments
Zipper option for faster loading/unloading than traditional velcro
Mesh back for airflow during extended wear
Standard fit in this 40 lb variant
Price point: ~$131 at standard pricing

Build & fit: miR is recognized in weighted-vest circles as a solid mid-tier brand with decent durability. Users report stable fit and low bounce during rucking and walking, though some note the vest warms up on longer sessions. Construction is generally reliable, though occasional reports of velcro wear or zipper stiffness appear across variants.

Best for: Ruckers and weighted-walking enthusiasts who want adjustability without the premium price of tactical brands (5.11, GoRuck) and who value the convenience of a zipper system for frequent weight changes.