Insole materials across the listings include foam, EVA (including 100% EVA), 100% polyurethane, and memory foam; several listings highlight EVA or memory-foam construction for extra cushioning.
Outsoles are made from rubber, TPU, PVC, or TPR. Some listings also call out textured or non-slip (slip-resistant) outsoles for improved grip.
Most listings indicate a medium width and reviewers generally report true-to-size fit, though some customers find certain styles slightly large; at least one style runs small and is available only in full sizes.
Many listings are shown in size 6 (one shows 6.5). Several items use full-size increments only; one style specifically advises sizing up because it runs small, while reviews for other styles report generally true-to-size with some variation.
Toe shapes include round, almond, and pointed (including one open/pointed style). Heel heights range from very low flats (about 0.25–0.75 inches) up to stiletto heights around 3.25–3.5 inches.
Common comfort features are memory-foam or foam insoles, EVA cushioning, targeted padding (for example in the ball-of-foot area), removable footbeds, and padded heel and tongue support on some sneakers.