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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 10/8/2026 Lincoln Frost had this to say:
Gave me great advice and followed my requests regardless of their own thoughts on my outfit. Would recommend!

On 10/4/2026 Tyler Rios had this to say:
Very good customer service and suits

On 10/3/2026 George Steinbach had this to say:
Excellent customer service and helpful staff

On 9/30/2026 Joe E. had this to say:
Jeremy was very helpful and patient in making sure I got what I needed will definitely be going back for more apparel in the future great experience!!

On 9/29/2026 Jack Wheeler had this to say:
highly recommend!!!

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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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