Insoles & Orthotics

Sever's disease is the most common cause of heel pain in active children and adolescents typically occurring during growth spurts when the heel bone grows faster than the Achilles tendon and surrounding soft tissue, creating traction stress at the growth plate. It's not a disease in the traditional sense — it's a growth-related overuse condition that responds well to conservative management. The Synxsole Kids Insoles help by cushioning the heel and providing the shock absorption that reduces the impact aggravating the growth plate making them a core component of Sever's disease management alongside activity modification and stretching. A podiatrist can confirm the diagnosis and recommend a complete management approach.

The Synxsole Ultra Work Boot Insoles are built specifically for this environment engineered with Tri-Density Technology that combines soft, medium and firm layers to cushion, support and absorb shock through 16-hour industrial shifts without the compression and performance loss that standard insoles experience under sustained load. Designed for steel-capped boots, safety footwear and industrial shoes, they address the plantar fasciitis, heel pain and general foot and leg fatigue that physically demanding occupations create. If you're on your feet for extended shifts in hard footwear and standard insoles have let you down by mid-shift, this is the insole built to outlast the day.

Yes and this is one of the most important things to understand about orthotic insoles. The foot is the foundation of the kinetic chain the connected system of joints and structures that runs from the foot up through the ankle, knee, hip and lower back. When the foot pronates excessively or lacks adequate arch support, the misalignment travels upward, placing compensatory stress on every structure above it. Correcting the foot alignment through insoles reduces this compensatory load which is why many people experience meaningful improvement in knee, hip and lower back pain with consistent insole use, even when the pain seems unrelated to the foot. The Synxsole Align Pro Insoles are specifically designed to address this full-body alignment effect.

Insoles add a layer of material inside the shoe in well-fitting shoes you'll notice the support and comfort improvement rather than any significant change in fit. If the shoe already fits snugly, there may be a minor adjustment period. Synxsole insoles are designed with a slimline profile specifically to minimise the volume added inside the shoe fitting into a wider range of footwear including fashion shoes, work boots and sports shoes without the bulk that standard orthotic insoles create. Always remove the existing shoe insole before inserting for the most comfortable result.