Slip On.
Move Without Limits.
Premium black leather, lightweight flexibility, and all-day comfort in a dependable Chelsea work boot.
MEET THE ULTRA FLEX 3073
Easy to Wear.
Built to Perform.
The King Welt Ultra Flex 6" Black Chelsea Work Boot combines slip-on convenience, premium full-grain leather, and lightweight flexibility in one dependable all-around work shoe.
Traditional welt construction, a leather lining, an Anti-Fatigue Insole, and a dual-density polyurethane sole provide the durability, stability, traction, and comfort needed through demanding shifts.
Ultra Flex at a Glance
Easy Slip-On Design
The Chelsea-style construction makes the Ultra Flex quick and easy to pull on, so you can get ready and get moving without dealing with laces.
Lightweight Flexibility
The dual-density polyurethane sole delivers heavy-duty support without the unnecessary weight and stiffness of a traditional work boot.
All-Shift Comfort
The King Welt Anti-Fatigue Insole and leather lining help keep your feet cushioned and supported throughout demanding workdays.
CHELSEA SLIP-ON CONVENIENCE
No Laces.
No Wasted Time.
The 6-inch Chelsea profile gives you the convenience of a slip-on work boot with the dependable fit and mobility needed for active jobs.
✓ Quick pull-on entry
✓ Flexible Chelsea profile
✓ Easy everyday wear
DUAL-DENSITY POLYURETHANE SOLE
Stable Underfoot. Flexible in Motion.
The lightweight dual-density polyurethane sole combines heavy-duty durability with technology engineered for stability, flexibility, and lasting comfort.
Confident Traction
Oil- and slip-resistant traction helps support stable movement across changing work surfaces while maintaining the flexibility needed for active jobs.
PREMIUM MATERIALS
Full-Grain Black Leather
The full-grain leather upper offers oil- and water-resistant properties, while the leather lining provides a durable and comfortable interior.
Performance Underfoot
Made for the Way You Work
KING WELT ULTRA FLEX
Slip On.
Get the Job Done.
Step into Chelsea convenience, lightweight flexibility, dependable traction, and premium black leather.
EASY TO WEAR • BUILT TO PERFORMAll boots are true to size*
Slip On.
Move Without Limits.
Premium black leather, lightweight flexibility, and all-day comfort in a dependable Chelsea work boot.
MEET THE ULTRA FLEX 3073
Easy to Wear.
Built to Perform.
The King Welt Ultra Flex 6" Black Chelsea Work Boot combines slip-on convenience, premium full-grain leather, and lightweight flexibility in one dependable all-around work shoe.
Traditional welt construction, a leather lining, an Anti-Fatigue Insole, and a dual-density polyurethane sole provide the durability, stability, traction, and comfort needed through demanding shifts.
Ultra Flex at a Glance
Easy Slip-On Design
The Chelsea-style construction makes the Ultra Flex quick and easy to pull on, so you can get ready and get moving without dealing with laces.
Lightweight Flexibility
The dual-density polyurethane sole delivers heavy-duty support without the unnecessary weight and stiffness of a traditional work boot.
All-Shift Comfort
The King Welt Anti-Fatigue Insole and leather lining help keep your feet cushioned and supported throughout demanding workdays.
CHELSEA SLIP-ON CONVENIENCE
No Laces.
No Wasted Time.
The 6-inch Chelsea profile gives you the convenience of a slip-on work boot with the dependable fit and mobility needed for active jobs.
✓ Quick pull-on entry
✓ Flexible Chelsea profile
✓ Easy everyday wear
DUAL-DENSITY POLYURETHANE SOLE
Stable Underfoot. Flexible in Motion.
The lightweight dual-density polyurethane sole combines heavy-duty durability with technology engineered for stability, flexibility, and lasting comfort.
Confident Traction
Oil- and slip-resistant traction helps support stable movement across changing work surfaces while maintaining the flexibility needed for active jobs.
PREMIUM MATERIALS
Full-Grain Black Leather
The full-grain leather upper offers oil- and water-resistant properties, while the leather lining provides a durable and comfortable interior.
Performance Underfoot
Made for the Way You Work
KING WELT ULTRA FLEX
Slip On.
Get the Job Done.
Step into Chelsea convenience, lightweight flexibility, dependable traction, and premium black leather.
EASY TO WEAR • BUILT TO PERFORMAll boots are true to size*