Mercury - Flex® | White

$33 ~~$55~~ In stock

Keep little feet cool and comfy with Mercury. Open cutouts and breathable mesh make them perfect for running, exploring, and everyday adventures.

Approved by the American Podiatric Medical Association for promoting healthy foot development.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy

If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy

Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy

Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.3 / 5 · 3 reviews)

Joseph ★★★★★ Oct 18, 2026

The mesh keeps my son's feet from getting sweaty even on warm days, and the open cutouts are perfect for his active play. He finds them really comfortable to wear for hours at the park.

Charlotte T. ★★★★★ Oct 18, 2026

Our toddler hasn't stopped running since we got these—the open cutouts really do keep his feet from getting sweaty on warm days. They slip on easily and seem to hold up well to playground gravel.

Jason G. ★★★☆☆ Oct 19, 2026

The open cutouts on the sides are great for airflow, but the sizing feels a bit off compared to other sneakers we've tried. They fit okay with thick socks, but a bit loose without them.