15 Undercut Bob Ideas for the Perfect Edgy Haircut

If you’re looking for a hairstyle that’s both chic and daring, the undercut bob might just be your perfect match. This edgy twist on the classic bob features shaved or closely trimmed sections, paired with sleek, wavy, or textured lengths on top. Whether you prefer a subtle peek of the undercut or a bold, statement-making design, this style is as versatile as it is eye-catching.

From asymmetrical shapes to colorful accents, here are 15 undercut bob ideas that can inspire your next trip to the salon.

Sleek Undercut Bob with a Hidden Shave

For those who want to keep things low-key, try a sleek bob with a hidden undercut. The shaved section sits underneath the longer layers, so it’s only visible when you tuck your hair behind your ear or lift it up. This style is perfect for professionals who want an edgy twist without breaking dress codes.

Asymmetrical Undercut Bob for a Modern Edge

Add drama to your haircut with an asymmetrical bob where one side is longer than the other. Pairing this uneven length with a sharp undercut instantly gives you a runway-ready vibe. It’s a bold look that works beautifully with both straight and wavy textures.

Textured Bob with Side Undercut

If you love volume and movement, opt for a textured bob with a side undercut. This design keeps one side sleek and short while allowing the rest of your hair to be full of tousled layers. It’s a great option for those with thick hair who want to remove some bulk while still keeping style flexibility.

Geometric Design Undercut Bob

Turn your haircut into a piece of art by adding a geometric pattern to your undercut. Triangles, diamonds, and zig-zags can make the shaved area truly unique. Pair this with a sleek chin-length bob for a futuristic look that’s bound to turn heads.

Short Bob with Nape Undercut

Perfect for warmer climates, the nape undercut removes hair from the back of your neck, keeping you cool and comfortable. When combined with a short bob, it creates a clean, sharp silhouette that’s easy to maintain. You can even add a pop of color to the longer layers for a playful twist.

Layered Bob with Tapered Undercut

Layering gives a bob dimension, while a tapered undercut blends the shaved area smoothly into the longer lengths. This combination adds softness to the cut while still keeping that edgy undercut vibe. It’s ideal for those who want a more wearable version of the style.

Blunt Bob with Undercut and Bangs

Go bold by pairing a blunt-cut bob with full bangs and a sharp undercut. The straight edges and fringe create a dramatic, fashion-forward aesthetic. This works especially well for straight hair, where every line of the cut can be appreciated.

Inverted Bob with Hidden Undercut

An inverted bob, where the back is shorter and gradually lengthens toward the front, gets a fresh update when paired with a hidden undercut. This makes the back even lighter and easier to style, while maintaining a polished look from the front.

Pastel-Colored Undercut Bob

Why stop at just the cut when you can play with color too? Pairing a soft pastel shade like lavender, mint, or blush pink with an undercut bob creates a fun, whimsical style. The contrast between the edgy cut and the dreamy color makes for an unforgettable look.

Curly Bob with Side Shave

If you have naturally curly hair, you can still rock an undercut bob. Shave one side to create a striking asymmetry, letting your curls cascade on the opposite side. This style works best with defined curls to highlight the contrast in lengths.

Long Bob (Lob) with Undercut Design

For those not ready to go super short, the long bob—or “lob”—is the perfect compromise. Add an undercut with a unique shaved pattern to keep things interesting. This style offers length versatility while still showcasing that edgy shaved detail when you want.

Shaved Undercut Bob with Bold Highlights

Highlight your undercut by adding bold streaks of color, such as platinum blonde, vivid blue, or fiery red. The color will draw attention to the shaved section, making it a true statement feature. Pair it with a chin-length or shoulder-length bob for balance.

Messy Wavy Bob with Undercut

For an effortless, laid-back style, try a wavy bob with a hidden undercut. The waves add texture and volume, while the undercut keeps things cool and modern. It’s a low-maintenance look that still packs plenty of personality.

Stacked Bob with Shaved Back

A stacked bob features layers that graduate from short in the back to longer in the front. Pairing it with a shaved back adds a sleek, edgy twist to the volume-heavy cut. This look is perfect for those who love structured hairstyles.

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Bob with Peekaboo Undercut Pattern

If you like surprises in your style, go for a peekaboo undercut. This design remains hidden when your hair is down but reveals a fun shaved pattern when you pull it into an updo or half-up style. It’s a versatile option that lets you control when your undercut makes an appearance.

Styling Tips for an Undercut Bob

• Maintenance is key: Shaved sections grow out quickly, so plan on touch-ups every 3–4 weeks.
• Play with texture: Straight, wavy, or curly—undercut bobs work with all hair types.
• Experiment with color: Highlights, pastels, or bold hues can enhance your cut’s visual impact.
• Use lightweight products: Avoid weighing down your bob with heavy creams or oils, especially if you want volume.

Why Choose an Undercut Bob?

The undercut bob is more than just a trendy hairstyle—it’s a form of self-expression. It allows you to combine sophistication with boldness, and it can be tailored to suit your lifestyle, face shape, and personal style. From subtle nape shaves to striking side patterns, the options are endless.

If you’ve been considering a major hair transformation, these 15 undercut bob ideas offer plenty of inspiration to find a version that fits you perfectly. Whether you want something discreet or a full-on statement piece, this cut has the versatility to make it happen.