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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
- Illinois Valley Area Chamber of Commerce
- La Salle Business Association
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
Testimonials
On 8/6/2026
Megan Keeney
had this to say:
Very friendly and helpful taking care of our needs for a suit.
On 8/4/2026
Amy Arthur
had this to say:
Love love love this store! The best customer service you will ever get.
On 7/29/2026
Erik Czerwin
had this to say:
Updated review...
I've been shopping here for a bit over a year now, and Jeremy is phenomenal. He's given me an education and some tremendous guidance. I can find what I want, what I need, and a little extra set of "I didn't know they made that!"
I'll be back again and again while sending my family for gifts, and my friends for an update to their style.
On 7/27/2026
Andy Skoog
had this to say:
Jeremy was amazing with helping me with getting an outfit for an upcoming wedding. What was so impressive is my dress pants were tailored in house. They were done in less than a day which was very important because the wedding was only a couple days away. His service and professionalism is way above any of the local big box stores. Shop local and you will see the difference. No one helps you like he does. Thanks again for the great shopping experience. Andy
On 7/27/2026
Gary Crouch
had this to say:
Super knowledgeable about the current styles and products offered. Good selection of brands and sizes. They are always looking for the current styles and colors. Best choice in the area
Contact Us
That Guy's Secret
105 Marquette Street Suite B LaSalle, IL 61301
Phone: (815) 250-0928
Email: info
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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