The spartan sandals are gladiator sandals and characterized by straps. Since these sandals are statement footwear, go for less gaudy dresses and let your shoes steal the limelight.
The suede gladiator sandal with tie-up feature has the old Roman era vibe. Wear with a simple and short dress to highlight the pair.
The ankle-length gladiator sandals are best, especially when they are flat. To make them look chunkier, you can wear anklets.
The wedge heel coupled with this sandal looks perfect for your outdoor garden party. Wear with floral tea-length dress to look perfect.