Activities

Android

Arrows

Audio Video

Business Payments

Common Actions

Communication

Hardware

Home

Household

Maps

Photo Image

Privacy Security

Social

Text Formatting

Transportation

Travel

UI Actions

Streamline 3.0

Ultimate

Core

Flex

Sharp

Plump

Micro

Freehand

Streamline Material

Nova

Cyber

Streamline Vault

Logos

Pixel

Google Material

Tabler

Remix

Feather

Iconoir

Carbon

Solar

Lucide

Brand Logos

Bootstrap

Atlas

Unicons

Ionic Icons

Phosphor

MingCute

Font Awesome

Majesticons

Mynaui

Radix

Heroicons

Flagpack

Markunread Mailbox

Markunread Mailbox Fill

Mark Unread Chat

Mark Unread Chat Alt

Mark Unread Chat Alt Fill

<p>Improved Material Line Icons redrawn using Material Design Guidelines with better coverage and consistency. Fixed where originals fell short.</p>

Outlined Line - Streamline Material

**Summary**: The most neutral Streamline Material sub-style — standard-roundness 1.5–2px stroke on a 24px grid, the direct replacement for Google Material Icons outlined variant, maximum familiarity for Material Design users. The tone signals established convention: "we follow what everyone already recognises." Best as a drop-in replacement for Google Material Symbols Outlined in any Android, web, or cross-platform product using Material Design, where familiarity with Google's icon vocabulary is a feature for the user base.

**Last updated**: 2026-04-23

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## Fit & Recommendation

### Primary use cases

- The direct replacement for Google Material Icons outlined variant — use wherever you would use Material Symbols Outlined
- Primary navigation in Android, web, and cross-platform products using Material Design system
- Dense toolbars and action bars where icon neutrality is more important than personality
- Products where Material Design familiarity is a feature for the user base
- Component libraries built on Material 3 needing broader icon coverage than Google provides natively

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## Brand & Cultural Identity

### What it communicates

> "We follow established conventions."

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## Visual & Technical Specs

### Visual properties

| Property | Value |
|----------|-------|
| Stroke weight | ~1.5–2px |
| Fill | None |
| Corner treatment | Rounded caps and joins — standard Material-convention roundness |
| Color | Monochrome (black default) |

### Emotional Scores

Material Outlined Line is near neutral on warmth leaning slightly warm — standard-roundness strokes on the 24px grid carry no warmth signal but also no cold tension, sitting at the Material-convention neutral. It is somewhat soft — the 1.5–2px rounded line is moderately soft, neither hairline nor heavy. It is near neutral on friendliness — direct Material alignment reads as universally accessible, landing at an exact neutral between friendly and formal. It is near neutral on playfulness — optimised for recognition rather than expression, producing a genuine neutral. On its human↔mechanical character, it is near neutral leaning slightly warm — rounded caps give a slight human quality while the systematic 24px construction gives a slight mechanical quality, balancing each other.

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## Pairing & Compatibility

### Typography pairing

- **Primary**: Roboto — the canonical Material Design typeface; the pairing is a system default
- **Alternative**: Inter — universal humanist neutral; no visual contradiction
- **Display**: Google Sans or DM Sans — for products extending Material conventions with slightly more brand presence
- **Body**: Roboto Regular or Inter Regular
- **Avoid**: Cold geometric sans at heavy weight, serif display fonts, hand-drawn fonts


<p>Everything you love about Material, without the flaws. We fixed inconsistencies, expanded the library, and rebuilt it for total coverage.</p>

Markunread Mailbox icon - Outlined Line - Streamline Material Set

Download Markunread Mailbox SVG vector or transparent PNG icon in Line, Outlined, Geometric style(s) for Sketch and Figma. It belongs to Outlined Line - Streamline Material vectors SVG collection.