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That Guy's Secret

"That Guy's Secret: Where Modern Style Meets Fine Jewelry"

About Us

That Guy’s Secret is LaSalle, IL’s premier destination for fine jewelry and upscale men’s clothing, proudly serving Peru, Ottawa, Mendota, Streator, Utica, and surrounding areas since 2017. As a locally owned jewelry store and men’s boutique, we specialize in elegant fine jewelry, custom clothing, and private shopping experiences that elevate your personal style.

Browse our carefully curated collection of fine jewelry, featuring standout pieces perfect for engagements, anniversaries, gifts, and everyday luxury. Whether you're after something timeless or trend-forward, That Guy’s Secret brings quality and sophistication to every look.

Our men’s fashion offerings include custom-fit pants and shirts by Stantt, tuxedo and suit rentals, and wardrobe essentials from leading brands like Saxx Underwear, Mission Belts, and the Tasc Performance Line. From dressy to laid-back, we help modern men define their style.

Private shopping is available anytime during business hours, offering you one-on-one attention, expert advice, and a relaxed environment to explore our collections. Whether you're shopping for a special event or looking to completely build your wardrobe from the ground up, we’re here to make it effortless.

For fine jewelry, fashion-forward menswear, and a personalized shopping experience, visit That Guy’s Secret in LaSalle, IL — where your style is our mission.

Areas Served

Batavia, IL | Bloomington, IL | Coal City, IL | DeKalb, IL | Dixon, IL | Dwight, IL | El Paso, IL | Galesburg, IL | Geneva, IL | Kewanee, IL | Ladd, IL | LaSalle, IL | Manlius, IL | Marseilles, IL | Mendota, IL | Morris, IL | Oglesby, IL | Ottawa, IL | Peoria, IL | Peru, IL | Pontiac, IL | Princeton, IL | Rochelle, IL | Sandwich, IL | Sheffield, IL | Spring Valley, IL | St. Charles, IL | Sterling, IL | Streator, IL | Tonica, IL | Utica, IL | Walnut, IL | Wyanet, IL | Yorkville, IL

Our Professional Associations

What We Offer

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Testimonials

On 11/20/2025 Robert Thompson had this to say:
I’ve selections of quality items

On 11/20/2025 Stephanie Simons had this to say:
Fast service, arrived in perfect condition, excellent experience buying from them! Would definitely do again.

On 11/4/2025 Kerri Brady had this to say:
Great quaility of clothes! Stumbled upon a great sale on a random Saturday. The employees were helpful.

On 10/9/2025 Meredith Martin Olsen had this to say:
I have never gone into a shop and felt like they wanna truly make me happy. They took time find out exactly what I was looking for. Measured me for a shirt for my nephews formal wedding. My entire experience was amazing.

On 10/2/2025 Michael Urbanski had this to say:
That guys secret was the best place for me to go and find a new attire.. They were so helpful. I would recommend this place to everyone..

Contact Us

That Guy's Secret
105 Marquette Street Suite B LaSalle, IL 61301
Phone: (815) 250-0928
Email: info@thatguyssecret.com

Corner of 1st and Marquette

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Payment Types Accepted

Checks, American Express, Discover, MasterCard, Visa, Debit Cards

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 10:00 AM - 4:00 PM
Tuesday: 10:00 AM - 5:00 PM
Wednesday: 10:00 AM - 5:00 PM
Thursday: 10:00 AM - 7:00 PM
Friday: 10:00 AM - 4:00 PM
Saturday: 10:00 AM - 4:00 PM

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