# Base Sport™ – Racerback Top

- **Brand:** Negative Underwear
- **Price:** $88.00
- **Catalog:** negativeunderwear
- **Retailer:** negativeunderwear
- **Product URL:** https://go.cosimo.shop/r/gAAAAABq3XNLtsLvbLA3NkcU120gWaWMepnBHr3dyFsaRHeVwcsDvYBxbHmkWDjpjYaaDtW84q7m-QIJ4uf5XBAOxVMvgo_Zkc9ln0P7KRqyqRGhbsRX9ASSk9rBh4Uge84jaxoC4pGyFc9QsIRSZosvx_uK7A-teiUzjv0yjC0tJxhjdfJ6JBlSQLFutVXAxJRbdaAEM-_-UkY08OZ7NsPXVNdWfwW-ahFbVFEUvaWR8Hv_meLhWk-XazjH60m3ToaGtb4IYZ5s0qWHSbH2Q9Vn_SLdHYA3zu8f_2cVlQJfbwMpBgbiUXJDeOiOSXhFZbeaTqWnt5g8W-LZUuXFR_vsB8wp53pb-cSuC9Pd7DkfsSyFX0GsRuDjmB9lkdVQp_AOUciZM4DpePzt8K-eSZEHlgN9S_PoZgqWYGp4SUryjJewx2PMKfmGLJtAuX1AJgdisXEiVhlKGpzhd2-UChCjx0HjxHhi3UgY9udmrOqzi7muMtcfjfg=
- **GTIN:** 840285851870
- **Availability:** In stock

## Summary

Sleek black racerback sports bra featuring a double-lined construction for light support and bonded seams for a smooth, bulk-free finish.

## Description

Sleek, supportive, and built to move beyond the workout. This top features a streamlined racerback silhouette with a double-lined construction for light, natural support. No padding or unnecessary hardware required. Bonded seams create a smooth, barely-there finish without bulk or digging, while our custom spacer-lite fabric offers a gentle, flexible hold with zero sheerness. Crafted with a mix of Lycra and soft yarns, it delivers high-performance stretch with a refined, silky feel. Designed for Pilates, yoga, and whatever comes after. *411* Use this as a guide. Preference is a huge factor — if you're near the top of a size range and/or prefer more coverage, you may want to size up. Features a scoop neckline *FABRIC* A custom fabric, years in the making — combined elements from two fabrics we loved into one that actually performs Black is a raven deep noir tone Main: 60% Nylon, 40% Lycra, Lining: 50% Nylon, 50% Lycra Machine wash warm, no bleach, tumble dry low, wear often

## Appearance

- **Colors:** Black
- **Color Families:** Black
- **Sizes:** 0, 1, 2, 3, 4, 5 (per-size availability under Variants)
- **Materials:** 60% Nylon, 40% Lycra, 50% Nylon, 50% Lycra

## Variants

- **In stock:** 6 of 6
- **Available:** 0, 1, 2, 3, 4, 5
- **Color (all variants):** Black

| Size | SKU | Availability |
| --- | --- | --- |
| 0 | NK-414-01E4-0 | In stock |
| 1 | NK-414-01E4-1 | In stock |
| 2 | NK-414-01E4-2 | In stock |
| 3 | NK-414-01E4-3 | In stock |
| 4 | NK-414-01E4-4 | In stock |
| 5 | NK-414-01E4-5 | In stock |

## Categories

- **Categories:** Lounge

## Additional Attributes

- **tags:** base, newcolor-black, newcolor-cream, newcolor-mink, season:fa-2026, sizechart-nonwire, Sport
- **vendor:** Negative Underwear
- **product type:** Lounge
- **return policy:** All last chance items marked with "Final Sale" are not eligible for return or exchange.
- **shopify handle:** black-base-sport-racerback-top
- **care instructions:** Machine wash warm, no bleach, tumble dry low, wear often
- **color description:** Black is a raven deep noir tone
- **fabric description:** A custom fabric, years in the making — combined elements from two fabrics we loved into one that actually performs
- **material description:** A custom fabric, years in the making — combined elements from two fabrics we loved into one that actually performs

## Enrichment

- **Type:** sports bra
- **Type Synonyms:** racerback top, athletic crop top, workout bra
- **Gender:** female
- **Age Groups:** adult
- **Activewear:** Yes
- **Tags:** racerback, double-lined, bonded seams, scoop neck, cropped length, seamless finish
- **Styles:** minimalist, athletic, sleek
- **Colors:** black
- **Color Families:** Black
- **Category Path:** Apparel & Accessories > Clothing > Underwear & Sleepwear > Lingerie, Intimates & Shapewear > Bras
- **Bra closure type:** Pull-on (no Closure)
- **Bra strap type:** Racerback
- **Bra style:** Racerback, Wireless
- **Bra support level:** Light
- **Fabric:** Elastane (Spandex / Lycra), Lycra, Nylon / Polyamide
- **General Clothing Features:** Stretchable
- **Opacity:** Opaque
- **Pattern:** Solid
- **Canonical Brand:** Negative Underwear

## Images

- ![Image 1](https://cdn.storerouter.ai/c135a18caffad14b33e1d3c79c12530c/04bce8875c24dae38eee282e15f63296.jpeg)
- ![Image 2](https://cdn.storerouter.ai/c135a18caffad14b33e1d3c79c12530c/9a4d611be2cf91a1e67025f4a9fd7551.jpeg)
- ![Image 3](https://cdn.storerouter.ai/c135a18caffad14b33e1d3c79c12530c/7491a79d39d36cfcf63aa3bdffe3c52f.jpeg)
- ![Image 4](https://cdn.storerouter.ai/c135a18caffad14b33e1d3c79c12530c/272d24c3affe3b6514e88b40064839bc.jpeg)
- ![Image 5](https://cdn.storerouter.ai/c135a18caffad14b33e1d3c79c12530c/d63baaa5726a05fa85e70b09c8fa45e9.webp)

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*Source: cosimo.shop | Product ID: 3877f7d7-052c-59c3-b5ac-44b11aaca6ce | Canonical URL: https://cosimo.shop/product/negative-underwear/base-sporttm-racerback-top-a724dd2c-6bda-4cb3-9950-9da993010bdd*