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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 3/23/2026 Kevin Bauer had this to say:
They are always accommodating and service oriented!

On 3/21/2026 LTS Dynamite had this to say:
Ver Nice guy and very very helpful had a lot of questions about a suit and all answered fast and professional

On 3/16/2026 Malcolm Roebuck had this to say:
Jeremy and team were very helpful

On 2/27/2026 Mark Schneider had this to say:
Jeremy and his team have been such a pleasure to work with over the years. From Saxx underwear to jeans or polos to other professional apparel, I have always appreciated their experience in making the right selections. Most recently I bought my wife some diamond earring that she absolutely loved! Wishing That Guys Secret continued success!

On 2/24/2026 STEVE MALO had this to say:
The staff was very friendly and helpful. I needed some jeans. They helped me find my size and styled I liked. It was my first visit in the store but not my last.

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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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