Optimum Nutrition Serious Mass Flavour:CHOCOLATE Grey - light

Grey - light

More freedom of movement thanks to extra large comfort zone

by  interacting with compressive knitted fabric and the two integrated silicon inlays

When to Wear it: This kit is designed to loosen-up and relieve sore and stiff backs

hair and nails

Optimum Nutrition Serious Mass Flavour:CHOCOLATE Grey - lightOptimum Nutrition Serious Mass the ultimate in weight gain formulas. Ectomorph's rejoice! If you are training hard, doing the work everyday, squatting hard but not putting on the size you want then you should try Optimum Nutrition's Serious Mass. Benefits: Not just a weight gainer but a great all round supplement with added Creatine and Glutamine Very high in carbohydrates and calories that can be used to increase your daily protein and calorie intake