Product Description
The Holy Trainer V4 (Nub) is the shortest option in Holy Trainer's bio-resin V4 range — a minimal 'nub'-length cage for the most discreet, strict fit. Like the rest of the V4 line it uses an integrated lock and a closed-tube bio-resin design for discreet, long-term wear.
About the Holy Trainer V4 family
The notes below describe the Holy Trainer V4 range as a whole and apply to every size — only the tube length differs between the Nub, Nano, Small, Standard and Maxi cages.
Design and construction
The Holy Trainer V4 is crafted from bio-resin, a material noted for being lightweight and durable, which aids comfort during extended wear. It uses a closed-tube design that fully encloses the shaft, minimising movement for a snug fit and limiting space for expansion.
Key features
- Bio-resin construction: lightweight and durable, suited to long-term wear.
- Integrated locking mechanism: secure closure without a separate padlock, reducing noise and discomfort.
- Closed-tube design: full enclosure of the shaft for privacy and security.
Practical use & maintenance
The V4 is designed for discreet wear under clothing during daily activities, and the integrated lock removes the need for a traditional padlock. The closed-tube design requires regular cleaning to maintain hygiene and ventilation.
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How Holy Trainer V4 (Nub) Compares
Recent Ratings Updates
Rating Breakdown
Pros & Cons
✓ Pros
- + Lightweight bio-resin construction
- + Integrated locking mechanism for security
- + Closed tube design for privacy
✗ Cons
- - Requires regular cleaning for hygiene
Pricing History
| Date | Price | Source |
|---|---|---|
| 2026-10-27 | $165.00 | holy-trainer-native |