# Acacia Men’s Cotton-Lycra Tank & Long Boxer Set – Dark Navy

## Acacia Dark Navy Cotton-Lycra Tank & Long Boxer Set

When you pack for a trip or organise a workweek, coordinated basics remove one more decision from the routine. This set brings together a tank undershirt and long boxer briefs in one consistent dark navy shade, creating a complete first layer beneath darker clothing.

Each garment is made from 96% cotton and 4% Lycra. Cotton gives the set its soft foundation, while Lycra adds gentle flexibility above and below the waist. The sleeveless tank layers easily, and the boxer legs extend along the thigh for greater coverage.

### Why Add This Set to Your Rotation?

-   Consistent dark navy color across both garments
-   Two coordinated pieces for work, commuting or travel
-   High cotton content with light Lycra stretch
-   Simple sleeveless tank construction
-   Long boxer briefs with extended coverage and a wide waistband
-   Repeating Acacia logos that identify the design

### Reading Comparison Searches Clearly

You may encounter Cottonil boxers, Cottonil Relax underwear or Cottonil price searches while comparing products. This is an Acacia set and does not represent Cottonil or any related product line. Compare pack contents, fabric percentages, cut, available size and the price displayed at the time of purchase.

If you only need the top, choose the [dark navy tank undershirt separately](/products/mens-tank-undershirt-cotton-lycra-dark-navy). You can also view more [men’s underwear options](/collections/mens-underwear) and check the [Acacia measurement chart](/pages/size-chart) before adding the set to your cart.

## Details

- **Price:** 299.0 EGP
- **Vendor:** Acacia
- **Type:** Men’s Underwear set

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Dark Navy / M | 299.00 EGP | In stock |
| Dark Navy / L | 299.00 EGP | In stock |
| Dark Navy / XL | 299.00 EGP | In stock |
| Dark Navy / 2XL | 299.00 EGP | In stock |
| Dark Navy / 3XL | 299.00 EGP | In stock |
| Dark Navy / 4XL | 299.00 EGP | In stock |
| Dark Navy / 5XL | 299.00 EGP | In stock |
| Dark Navy / 6XL | 299.00 EGP | In stock |

## Images

- Acacia Men’s Cotton-Lycra Tank & Long Boxer Set – Dark Navy
- Acacia Men’s Cotton-Lycra Tank & Long Boxer Set – Dark Navy
- Acacia Men’s Cotton-Lycra Tank & Long Boxer Set – Dark Navy
- Acacia Men’s Cotton-Lycra Tank & Long Boxer Set – Dark Navy
- Acacia Men’s Cotton-Lycra Tank & Long Boxer Set – Dark Navy

## Additional Information

- **Material composition:** 96% Cotton, 4% Lycra
- **Style:** Matching tank and long boxer set
- **Fit:** Close-to-body flexible fit
- **Pattern:** Solid
- **Fabric feel:** Soft against the skin, lightweight, and breathable
- **Recommended use:** Coordinated daily base layer, work and home
- **Type:** Men’s Underwear set
- **Note:** This is a fixed dark navy two-piece set containing one tank and one long boxer. The image shows the set color itself; it is not a random-color example.

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> Source: [Acacia](https://acaciawear.com/products/mens-tank-long-boxer-set-cotton-lycra-dark-navy)
> Updated: 2026-09-24