Korin is an athlete that is an expert in building and maintaining upper body definition. If you want a killer back and bicep workout, follow along with Korin in the workout below.

Workout Breakdown

Fuel your workout with Nutrients, not stimulants. Pre JYM - The True Performance Pre-Workout

Pre JYM

Pre JYM 20 Servings - Orange Mango

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Tags: Back Biceps