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Alt-4 Drop-in Midsole
Alternate Midsole with 4mm Drop
$29
Adapt your drop. Change your game.
The Alt-4™ Drop-In Midsole gives you control over your court geometry. Swap it into the Atomic Court to add 4mm of heel cushion.
- Bundle & Save: Get 50% off the Alt-4 when you purchase it with a pair of Atomic Courts.
- Seamless Geometry Swap: Instantly converts your Atomic Courts from a zero-drop setup to a 4mm offset platform to suit your movement style and training needs.
- Anatomical Fit: Straight-toe anatomical footprint for zero pinching, sliding, or lost court feel.
- Zero-Drop Transition or Recover Day Flexibility: The perfect bridge for athletes coming from conventional athletic shoes, or as an alternative if calves are tight.
- Targeted Impact Protection: Absorbs shock at heel strike during aggressive court cuts, fast pivots, and hard landings.
- Weight: 2.2 oz per midsole (Men's Size 9) / 1.9 oz (Women's Size 7)
- Heel-to-Toe Drop: 4mm offset (10mm in heel; 6 mm in toe)
- Cushioning Material: Proprietary Q-Phase™ ultra-low compression polyurethane
- Compatibility: Any Atomic Court; buy your regular shoe size and swap out the midsole
- Top-Cloth: Anti-microbial top-cloth to limit slip and prevent odor buildup
- The Quick Swap: Simply remove the native Base-6™ midsole from the Atomic Court and drop in the Alt-4 to modify your offset.
- Listen to Your Body: Keep the Alt-4 in as long as needed during your transition phase, or keep it in your bag as an on-demand option for fatigued lower legs.
- Care Instructions: Keep them fresh by hand-washing with warm, soapy water. Air dry only. Do not machine wash or tumble dry.

