This design looks very familiar and reminds me of a Hong Kong-base company which makes good quality tactical gear. This one's at Airsoft Park and with free shipping, it costs US$55.99. You can choose from black, khaki, MARPAT, and multicam colours. The knee pads are also part of the package. Unfortunately, there is not matching upper clothing to match some of the colours, with the exception of the Multicam one at their website.

• "Constructed by 35% cotton & 65% Polyester, high performance synthetic knit torso, suitable for High rate movement
• Professional designed as combat-specific upper garment
• Full length side zips
• Belt and plastic loop on front for hanging articles like bottles and pouches. The belt on the pants is not included.
• Ten different sizes pockets on the pants for convenient using.
• 2 slash pockets (20cmx21cm) with velcro belt inside to adjust the pads.
• 2 cargo pockets in size of (15cmx20cm) in the back of the pant. With Velcro attachment cover on the top.
• 2 front cargo pockets (11cmx15cm) with velcro closure on the front of the leg.
• 2 front cargo pockets (20cmx24cm) with velcro closure on the side of the leg.
• 2 front cargo pockets (10.5cmx14cm) with velcro closure on the end of the pants.
• Velcros on the knee parts, then the knee pads is detachable
• Zipper fly and adjustment Velcro closure waistband
• Reinforced waterproof resistant on the lower legs part
• Ankle part is adjustment with Velcro tab"