---
title: "Envelope 1 Icon | Free Download PNG & SVG | Cyber Line"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/envelope-1--17005
canonical_url: "https://www.streamlinehq.com/icons/download/envelope-1--17005"
summary: "Sharp line icon of an envelope with folded triangular flaps. Used for email, messages, and mail."
---

# Envelope 1 icon

The Envelope 1 icon shows a rectangular envelope with angular folded flaps and a central vertical seam. Drawn in the Cyber Line style on a 24px grid with a 1px stroke for crisp geometric clarity. Use it for email buttons, messaging interfaces, contact forms, and mail settings. It belongs to Cyber Line set in the Cyber family.

## Preview

![Sharp line icon of an envelope with folded triangular flaps. Used for email, messages, and mail.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/emails/envelope-1-229u2p0nftptobgyvinkfg.png/envelope-1-tsw3vyfbwqhuotqi2j1ej.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Envelope 1
- **Type**: Icon
- **Set**: [Cyber Line](/icons/cyber-line.md) — Cyber features only straight lines and sharp angles for a futuristic, high-tech aesthetic. The Line variant maintains geometric clarity.
- **Family**: [Cyber](/icons/cyber.md) — Icons from the future
- **Style**: Line, Geometric, Stroke
- **Category**: Emails › Emails
- **Default size**: 24px
- **Stroke width**: 1px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: envelope, mail, postal, send, letter, post, message, closed, communication, document, correspondence, address, email

## Download

- [Download Envelope 1 on Streamline](https://www.streamlinehq.com/icons/download/envelope-1--17005)

## Also available in other styles

- [Envelope 1 — Cyber Duotone](/icons/download/envelope-1--17106.md) (Pro)

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