Tantaly has launched the Grace Heart-Shaped Ass Sex Doll, which features a heart-shaped buttocks design and incorporates Tantabutt S technology. This new doll is now available for purchase on Tantaly.com.

Grace Doll Features and Tantabutt S Technology

The Grace Heart-Shaped Ass Sex Doll was unveiled on September 28, 2026, in Los Angeles. It features a heart-shaped buttocks design with a pronounced waist-to-hip ratio. The doll is finished with 13 layers of body painting and utilizes delicate, lifelike silicone skin, described as hyper-realistic. The Grace doll weighs 23 pounds.

Powering the Grace doll is Tantabutt S, an upgraded soft-butt technology developed specifically for silicone. This technology aims to extend a soft-butt experience to medical-grade liquid silicone, providing natural rebound and a realistic buttocks touch. Tantabutt S also maintains the durability and long-term stability associated with silicone products. A Tantaly representative stated that Tantabutt S was developed specifically for silicone, allowing silicone dolls to deliver the natural rebound and lifelike touch characteristic of Tantabutt. The representative also noted that Grace continues this philosophy, aiming for users to experience the same realistic, natural buttocks touch across all materials.

Grace features a dual-channel design and an integrated skeleton-free body. This design enhances buttocks stability and consistent touch.

Evolution of Tantabutt Technology

The proprietary Tantabutt technology was originally developed in response to consumer demand for softer buttocks. According to Tantaly's technical data, Tantabutt is 50 percent softer than previous designs. The production time for products incorporating Tantabutt technology has increased by approximately 20 percent.

Traditional solid buttocks, according to company technical data, are firm and durable but do not replicate the feel of real buttocks and offer limited performance in slapping, jiggling, and rebound. Common gel buttocks on the market are softer and bounce more pronouncedly, but, being made entirely of gel, they lack support and are prone to deformation.

Tantaly addressed these issues by adding a support layer over the gel material. The company conducted multiple rounds of testing on skin-layer thickness, the matching of inner gel softness, and the bonding of the two layers. This process aimed to strike a balance between soft touch and structural stability.

Tantabutt technology was previously applied only to TPE products. Tantabutt S, by contrast, is developed specifically for silicone, extending the soft-butt experience to medical-grade liquid silicone for more natural rebound and realistic buttocks touch, while maintaining the durability and long-term stability of silicone.

A company representative stated that "softness and durability shouldn’t be a trade-off." The company aims for users to experience the same realistic, natural buttocks touch across all materials.

Industry Context and Availability

The launch of the Grace Heart-Shaped Ass Sex Doll by Tantaly on September 28, 2026, occurred alongside other product announcements in the adult industry. On the same date, Full Circle expanded its Sparkle line of jeweled anal plugs with Sparkle Ultra and Sparkle Shroom. Orion Wholesale also debuted four new styles from its Cottelli Party line and expanded its Cotelli Bondage collection with five new outfits on September 24, 2026. Additionally, sexual wellness company Wild Brands, led by Briana Watkins, officially launched on September 28, 2026.

Other recent product releases include Kheper Games' new Adult A...Z party game on September 23, 2026, Nobü's expansion of its Essentials collection with three new vibrators on September 22, 2026, and Blush's introduction of a new vibrating plug from its B Yours Collection on September 22, 2026. We-Vibe debuted its new Shared Touch vibrator for couples on September 22, 2026, and Kiiroo introduced the new Tyler Wisby stroker sleeve from its FeelStar line on September 22, 2026.

The Grace Heart-Shaped Ass Sex Doll is available for purchase at Tantaly.com. Tantaly can also be followed on X.com.

Key Facts

  • Tantaly launched the Grace Heart-Shaped Ass Sex Doll on September 28, 2026.
  • The Grace doll features a heart-shaped buttocks design with a pronounced waist-to-hip ratio and hyper-realistic silicone skin.
  • It is powered by Tantabutt S, an upgraded soft-butt technology developed specifically for silicone.
  • Tantabutt technology was developed due to consumer demand for softer buttocks and is 50% softer than previous designs.
  • The Grace doll weighs 23 pounds and is available for $499.99.
  • Grace features a dual-channel design and an integrated skeleton-free body.