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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.

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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

• Illinois Valley Area Chamber of Commerce
• La Salle Business Association

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What We Offer

Our Specialties include:

• Personal Shopping Subscription Boxes
• Custom Fittings

Our Services include:

• Big and Tall
• Custom Fit Shirts and Pants
• EMS, Fire and Police Custom Orders
• Extended Sizes
• Tuxedo Rentals
• Buy and Sell Gold, Silver, and Platinum
• Earrings
• Watches

Our Brands include:

• 7 Diamonds
• Allure Men Tuxedos
• Alternative Shirts
• American Needle
• Banks Journal
• Ben Sherman
• Blue Q Socks
• Callaway
• Cole Hahn Shoes
• Dakota Grizzly
• Enro
• Florsheim Shoes
• FUN Socks
• Fury Bros. Soap
• Henleys
• Hex Bags
• Ike Bihar Tuxedos
• Kenneth Cole Tuxedos
• Knockaround Sunglasses
• Liverpool Pants
• Mavi Jeans
• Michael Kors Tuxedos
• Mission Belt
• People Footwear
• Perry Ellis Pants
• Psycho Bunny
• Retro Brand Graphic T-shirts
• Rip Stop Pants
• Roamers
• Savane Pants
• Saxx Underwear
• Shottbros Sweaters
• Sock It To Me
• St. James of London Cologne
• Stantt
• Taclite Pants
• Tallia Orange
• Tasc Performance Line
• The Ridge Wallets

Our Products include:

• Accessories
• Backpacks and Bookbags
• Baseball Hats
• Beanies
• Belts
• Blazers
• Boxer Briefs
• Casual Pants
• Chinos Pants
• Chains
• Coffee
• Cologne
• Dress Shirts
• Dress Shoes
• Flannels
• Golf Attire
• Jackets
• Jeans
• Overcoats
• Polos
• Pullovers
• Scarves
• Shave Kits and Shave Cream
• Shorts
• Sleepwear
• Slip-On Shoes
• Soap
• Socks
• Sports Jackets
• Suits
• Sunglasses
• Sweaters
• Sweatpants and Joggers
• T-shirts and Graphic T-shirts
• Ties and Tie Clips
• Tuxedoes
• Vests
• Wallets
• Zip-up Sweatshirts and Hoodies

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Testimonials

On 5/26/2026 kelli raley had this to say:
Great service very friendly

On 5/26/2026 Scott Cumpton had this to say:
Needed upscale clothes for a upcoming wedding, Jeremy knocked it out! The man knows what he is doing. Highly recommended going there

On 5/23/2026 Frank Coyle had this to say:
Great store! Glad I found it. I was not expecting such a quality store in downtown LaSalle. The owner was there and extremely helpful and attentive. Quality merchandise. Fair pricing. You won’t be disappointed. Give them a try.

On 5/3/2026 Alex Taylor had this to say:
The staff was wonderful, suit was clean and no visible marks.

On 4/6/2026 Hayden Grandadam had this to say:
The staff is always very kind very easy to work with it dosnt matter if your talking to the owner himself or the staff that works there everyone is always so polite. I’m not the best with style and they always are so passionate to help you can tell they love their job. I always like the experience when it’s time to rent a suit and play professional

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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

Where To Find Us

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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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