The two muscles that make you look built in a shirt
If you only nailed two muscle groups, you'd pick these: the side delts and the lats. Side delts widen the top of the V; lats flare it from the back and create that "caped" look. Together they make your waist look smaller without losing a pound. This is the highest-leverage work in the entire program.
Side delts — the #1 aesthetic muscle
Most guys train shoulders with heavy overhead presses and wonder why they're not wider. Pressing builds the front delt — and your front delt already gets hammered on every chest day. The muscle that creates width is the side (lateral) delt, and it grows from one thing above all: lateral raises, done with high volume and clean form.
How to do a lateral raise that actually works:
- Slight bend in the elbows, lock that angle for the whole set.
- Lead with your elbows and pinkies, not your hands. Imagine pouring out a jug of water.
- Raise to shoulder height — no higher. Above that, the traps take over.
- Control the way down (2–3 seconds). Most of the growth is in the lowering.
- No swinging. If you're heaving the weight, go lighter. Side delts respond to reps and tension, not ego weight.
Run lateral raises 3–5 times per week, 12–20 reps. They're a small muscle that recovers fast — you can hit them often. This is the cheat code.
Back — train it as TWO jobs
Your back needs two distinct movement patterns:
- Vertical pulls (width) — pulldowns and pull-ups. These build the lat flare that creates the V. Use a slightly wider-than-shoulder grip and think about pulling your elbows to your hips, not your hands to the bar.
- Horizontal pulls (thickness) — rows. These build the dense, 3D back. Chest-supported rows are gold because they remove momentum and force the back to do the work.
The cue that fixes most back training: stop pulling with your arms. Your biceps should feel like hooks, not the engine. Initiate every rep by pulling your shoulder blade down and back first, then let the arm follow. Squeeze for a half-second at the bottom of the contraction.
Rear delts — the detail that separates good from great
Rear delts round out the shoulder and fix the "hunched forward" look that desk life gives you. They're tiny and recover fast, so hit them 3–4x/week with reverse pec-deck or reverse cable flyes, 15–20 reps, light, slow, controlled. No ego here — you'll feel a 10 lb set if you do it right.
Putting it together
Width (side delts + lat width) plus thickness (rows + rear delts) is the entire V-taper recipe. If your sessions feel light on these, add a couple sets of laterals and a couple sets of rear delts as a finisher on any day. You literally cannot overdo these two for the look we want.