Fitness Solutions’ sand sac and training sled resistance trainer is the perfect tool for those looking to develop lower body muscle groups, including the glutes, quads, hamstrings, calves and hips. Commonly used for intense strength training in Crossfit gyms and football, weighted sled resistance training builds speed, explosiveness, core strength and power. Add up to five 8-lb weight bags to each sled and use this durable resistance trainer outdoors on any surface or indoors where it’s also safe for use on your gym floors.

• Heavy duty belt with adjustable leash
• Adjustable weight options for variable resistance 
• Includes 5 durable weight bags that can each be filled with up to 8 lbs of sand (40 lbs total)
• Comparable to conventional metal training sleds but much more portable and easy to store