---
product_id: 42626401
title: "3D Ultra Cap"
brand: "arena"
price: "¥6921"
currency: JPY
in_stock: true
reviews_count: 13
category: "Arena"
url: https://www.desertcart.jp/products/42626401-3d-ultra-cap
store_origin: JP
region: Japan
---

# 3D contoured design for sleek hydrodynamics Variable thickness for optimized fit & durability Special neck cut for ultimate comfort 3D Ultra Cap

**Brand:** arena
**Price:** ¥6921
**Availability:** ✅ In Stock

## Summary

> 🌊 Race ahead with the Arena 3D Ultra – where speed meets style!

## Quick Answers

- **What is this?** 3D Ultra Cap by arena
- **How much does it cost?** ¥6921 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/42626401-3d-ultra-cap)

## Best For

- arena enthusiasts

## Why This Product

- Trusted arena brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Fit:** One size fits most adults, perfect for every serious swimmer’s gear bag.
- • **Adaptive Thickness:** Engineered variable thickness ensures durability without sacrificing flexibility.
- • **Ergonomic Neck Cut:** Experience unparalleled comfort that stays put during intense swims.
- • **Bold Blue Statement:** Stand out in the pool with a sleek, professional look that commands attention.
- • **Hydrodynamic 3D Design:** Glide through water with minimal drag and maximum speed.

## Overview

The Arena Unisex 3D Ultra Swim Cap features a hydrodynamic 3D design with a special neck cut and variable thickness, delivering a comfortable, durable, and performance-optimized fit for adult swimmers seeking to enhance their racing edge.

## Description

The Arena 3D ultra unisex hat is high quality and perfect for competition. The anatomically moulded silicone ensures a perfect fit and no wrinkles. The hat provides maximum compression and a firm and stable hold during the run. It protects hair from chlorine and reduces attraction. Not recommended for long training sessions.

Review: Great wrinkle free dome cap - Best race dome cap. Runs very small I wear size 7 fitted cap and needed a Large
Review: Sloppy Production-glue on outside of cap - This cap ripped as it wouldn't open up. There is glue all around the dome of the cap. Really shoddy quality control on Arenas part.

## Features

- 3D cap; Special cut on the neck
- Variable thickness

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006L8VB9E |
| Best Sellers Rank | #1,206,769 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,961 in Swimming Caps |
| Brand Name | ARENA |
| Care instructions | Hand Wash |
| Color | USA Blue |
| Customer Reviews | 3.5 out of 5 stars 64 Reviews |
| Fabric type | 100% Silicone |
| Fit Type | fitted |
| Global Trade Identification Number | 03468334199932 |
| Item Weight | 3.84 ounces |
| Manufacturer | Arena North America |
| Manufacturer Part Number | 91825-74-L |
| Material Type | other |
| Model Number | 91825 |
| Origin | Imported |
| Size | Large |
| Target Audience | Unisex Adults |

## Images

![3D Ultra Cap - Image 1](https://m.media-amazon.com/images/I/51mn-CznW7L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great wrinkle free dome cap
*by P***F on December 30, 2018*

Best race dome cap. Runs very small I wear size 7 fitted cap and needed a Large

### ⭐ Sloppy Production-glue on outside of cap
*by A***R on June 24, 2019*

This cap ripped as it wouldn't open up. There is glue all around the dome of the cap. Really shoddy quality control on Arenas part.

### ⭐⭐⭐⭐⭐ Great Cap
*by A***T on January 2, 2014*

It fits well, molds to your head and it doesn't come loose. I would recommend this to most competitive swimmers.

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**Shop now:** [https://www.desertcart.jp/products/42626401-3d-ultra-cap](https://www.desertcart.jp/products/42626401-3d-ultra-cap)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-06-24*