Nike · Reviewed by WearTesters · Published 2026-04-13
Based on a review by WearTesters (accessed 2026-04-13).
Based on this review alone: buy it if you care about significantly lighter weight due to reduced outsole rubber (10.29 oz for size 9) — just accept not suitable for cold or rainy weather conditions (not winterized).
The reviewer concludes that the Nike Pegasus 42 is an "overall comfortable shoe" with a "super smooth and fluid ride," praising the improved ReactX cushioning and the widened toe box that provides ample room for runners.
This review provides a detailed look at the Nike Pegasus 42, focusing on its design changes, weight, cushioning technology, upper material, and fit. It includes specific measurements, comparisons to other models, and sizing recommendations for different uses.
The Nike Pegasus 42 is a notable update to the popular running shoe series, delivering instant changes in feel and a significantly improved cushioning experience. It features a reduced rubber outsole for a lighter weight of 10.29 oz (size 9) while maintaining durability with high abrasion rubber, and the re-implemented curved Zoom unit combined with ReactX cushioning provides a smoother, more fluid ride. The wider toe box also accommodates various foot types, offering more room for toe splaying. If you are a runner seeking a comfortable, responsive shoe with ample toe room, this model is a strong contender. However, if you prefer a very snug, one-to-one fit for casual wear, you might consider sizing down.
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The outsole features less rubber compared to previous models, which the reviewer states contributes significantly to reducing the shoe's overall weight.
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The reviewer measured the Nike Pegasus 42 in a size 9 to be 10.29 ounces (292 grams), noting Nike's website lists a size 10 at approximately 300 grams.
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Nike claims to use high abrasion rubber, and after daily use, the reviewer observed minimal wear and tear, indicating good durability.
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Despite the reduced rubber, the outsole maintains excellent flexibility and mobility, contributing to a "super smooth" feel during motion.
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The shoe incorporates a re-implemented curved Zoom unit that is encapsulated within the midsole, with its curvature subtly depicted in the overall design.
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The reviewer states this is "probably the best feeling ReactX" they've tried, especially when combined with the Zoom unit, making it feel "awesome."
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The ReactX cushioning in the Pegasus 42 feels less firm and improved compared to the Pegasus 41, which also featured heel and forefoot Zoom Air.
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The heel cushioning feels similar to the New Balance Elipse model, but the Pegasus 42 offers a noticeably closer-to-ground feel, which the reviewer finds enhances stability and is easier on the legs.
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Regardless of whether the user is idle, walking, or running, the shoe consistently provides a "super smooth and fluid ride" that felt great to the reviewer.
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The engineered mesh upper is highly breathable and comfortable, described as feeling like "a sock around your foot." The reviewer observed varied knit tightness for structure in high-stress zones and openness in other areas.
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After being caught in the rain, the reviewer's feet became completely soaked, confirming that the shoe is not water-resistant and is not a winterized version.
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Nike claims a widened toe box, which the reviewer felt "damn near instantly." This provides ample natural room for toe splaying and foot swelling, potentially eliminating the need for runners to size up.
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For running, the reviewer recommends going true to size, stating that the widened toe box accommodates wide footers without needing a dedicated wider option.
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For casual wear and a snug, one-to-one fit, the reviewer suggests trying them on in-store or going down half a size, but advises against this for running.
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The back of the shoe is shaped and scooped away from the heel, preventing rubbing or chafing. The semi-gusseted tongues are comfortable and easy to put on.
The reviewer measured a size 9 of the Nike Pegasus 42 at 10.29 ounces, or approximately 292 grams. This is consistent with Nike's listed weight of about 300 grams for a size 10, indicating a lightweight design partly due to less rubber on the outsole.
The Nike Pegasus 42 features a modified ReactX cushioning paired with an encapsulated curved Zoom unit. The reviewer praised this setup as the "best feeling ReactX" they've tried, finding it "awesome" and delivering a "super smooth and fluid ride" for all activities. It feels less firm than the Pegasus 41's ReactX and offers a stable, closer-to-ground feel compared to some other models.
Nike updated the fit by widening the toe box, which the reviewer noticed immediately. This change provides sufficient natural room for toe splaying and accommodates foot swelling, a rare feature in running shoes that often requires sizing up. This wider fit is generally considered a plus.
For running, the reviewer strongly recommends going true to size, as the widened toe box naturally accommodates typical foot swelling and wide feet. If you plan to wear them casually and prefer a snug, one-to-one fit, you might consider going down half a size or trying them on in-store, but this is not recommended for running.
The Nike Pegasus 42 features an engineered mesh upper that the reviewer found to be "super breathable" and "very comfortable," describing it as feeling "like a sock around your foot." It uses varied knit tightness, with high-stress zones being tight for structure and open areas for airflow.
The reviewer explicitly states that the shoe is not water-resistant, recounting an experience where their feet became completely soaked during an unexpected rain shower. This indicates it's not a winterized version and not suitable for wet conditions.
The reviewer praises the comfort of the heel area, noting its scooped shape prevents rubbing or chafing. The semi-gusseted tongues are also highlighted as very comfortable and easy to put on, contributing to the overall comfortable feel of the shoe.
85/100 source quality
The Nike Pegasus 42 introduces several changes, most notably a reduced weight of 10.29 oz (292g) for a size 9, and an improved ReactX cushioning setup. The reviewer found the ReactX, coupled with a curved Zoom unit, provides the "best feeling ReactX" they've tried, offering a smooth and fluid ride. The engineered mesh upper is breathable and comfortable, though not water-resistant. A key update is the widened toe box, which the reviewer felt instantly, making true-to-size a good option for most runners, including those with wide feet, while casual wearers might consider going down half a size for a snugger fit.
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This page converts WearTesters's review of the Nike Nike Pegasus 42 into structured evidence — timestamped claims, pros & cons, and buyer questions. It is not the original review and does not replace watching or reading the full source.
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