Optimum Nutrition Serious Mass Flavour:BANANA The unique shape featuring a

The unique shape featuring a recessed mid-section prevents direct contact with bones

726grams - $2

experience the full freedom of movement with WPN

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Optimum Nutrition Serious Mass Flavour:BANANA The unique shape featuring aOptimum 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