Altus Athletic AACV20 Weighted Vest 20-Pound Adjustable Heavy-duty nylon conditioning vest with padded shoulders, and mesh vented for breathability and temperature control Durable hook and loop weight closures securely hold steel weights in place Two adjustable straps with quick-release buckles and extra padding under buckles for added comfort and secure fit Adjustable in 1 lb. increments up to 20 lbs. Reflective material adds visibility at night