Neptune Set

$59.00 AUD

Estimated delivery between July 23 and July 26.


Introducing our Neptune collection of men's underwear, featuring a range of stylish and comfortable underwear in midnight, sierre, and cobalt colours. They are the perfect pairs for your style and comfort needs.

Crafted from premium materials, our Cosyall underwear is designed to provide a comfortable fit that lasts all day long. The breathable fabric ensures that you stay cool and dry, while the flexible waistband provides a secure fit without any digging or discomfort.

With its sleek and modern design, our Neptune collection is perfect for any occasion, whether you're hitting the gym or lounging at home. The classic colorways make it easy to pair with any outfit, while the high-quality construction ensures that you get the most out of your investment.

Whether you're looking for a classic boxer brief or a comfortable trunk, Cosyall has you covered. Shop our collection today to find your perfect fit and experience the ultimate in comfort and style.

The Perfect Blend of Comfort and Sustainability

At COSYALL, comfort is not just a feeling; it's a way of life. Our commitment to providing the best extends beyond crafting men's underwear – it's about enhancing your overall well-being. We're dedicated to bringing you a healthier and better life through eco-conscious practices, from sourcing sustainable materials to refining our production processes.

The COSYALL Trunk – Unparalleled Comfort

COSYALL's Breezisoft Underwear is a technological marvel:

  • Breezisoft Silkiness: Experience the invigorating sensation of silk-like material against your skin.
  • Soft and Gentle Feel: Revel in luxurious softness that creates a sensation of weightlessness.
  • Breathability and Rapid Drying: Embrace optimal airflow for quick-drying freshness.
  • Unrestricted Elasticity: Enjoy limitless stretch and flexibility.

Our innovative design includes an extra 3cm of pouch room, elevating your comfort to new heights and allowing unrestricted movement.

Our groundbreaking graphene-infused core, crafted from 95% Viscose and 5% Elastane, offers efficient moisture management and enhanced breathability. It's a game-changer in comfort.

  • Machine wash cold, gentle cycle, wash with like colours
  • Non-chlorine bleach only and dry promptly
  • Tumble dry normal cycle with low heat
  • Do not iron
  • Do not dry clean

At COSYALL, we strive to provide our customers with high-quality
products and exceptional customer service. We are pleased to offer nationwide
shipping to customers across Australia. Here is some important information about our shipping policies.

Order processing time:

We will process and dispatch your order within 3 business days of receiving your order confirmation. You will receive a confirmation email with your tracking number once your order has been dispatched.


Shipping methods:

We offer standard shipping for all orders, which usually takes 5-7 business days for Major Cities delivery. 10-15 business days for regional area delivery. We use trusted couriers to ensure your order arrives in a timely and safe manner.

If for any reason you are not
completely satisfied with your purchase, we offer a return policy that allows you to return eligible items in their original, unused condition within 14 days of purchase. Please note that due to the intimate nature of our products, we cannot accept returns without reason.

Eligible items:

  • Items that are damaged in transit or defective upon arrival.
  • Items that were shipped in the wrong size or colour.

Non-eligible items:

  • Items that have been worn or used.
  • Items that have been damaged due to customer misuse or neglect.
  • Items that have been altered in any way.

How to initiate a return:

To initiate a return, please contact our customer service team within 14 days of receiving your order. Please provide your order number, a description of the item(s) you wish to return, and the reason for the return.
Our customer service team will provide you with instructions on how to return the item(s).


$59.00 AUD

Our one-way moisture dispersion technology ensures 24 hours of dry freshness, even in humid conditions.

Choose COSYALL to elevate your comfort and redefine your underwear experience.

Our underwear is crafted from a meticulously balanced blend of 87% Polyamide and 13% Elastane, resulting in a remarkable fusion of qualities:

  • Breezisoft Silkiness: Experience the invigorating sensation of silk-like material against your skin.
  • Soft and Gentle Feel: Revel in the luxurious softness that envelops your body, ensuring a sensation of weightlessness and complete comfort.
  • Breathability and Rapid Drying: Embrace optimal airflow for quick-drying freshness, keeping you dry and cool in all situations.
  • Unrestricted Elasticity: Experience limitless stretch and flexibility, granting you full freedom of movement without any constraints.

You will receive a confirmation email with your tracking number once your order has been dispatched. You can track your order using the provided tracking number on our website.

If your order has not arrived within the estimated delivery time,
please contact our customer service team for assistance. We will do our best to resolve any issues or concerns you may have.

Thank you for choosing COSYALL for your comfortable and eco-friendly
underwear needs. If you have any questions or concerns about our shipping policy, please contact our customer service team for assistance.