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

Block – Free

Mail

Other UI

Guidance – Free

Interface

Stickies Duo - Free

Email Phone

Stickies Colors - Free

Outlined Line - Streamline Material

Platinum

Rounded Line - Streamline Material

Stickies Colors

Stickies Duo

Sharp Line - Streamline Material

Rounded Fill - Streamline Material

Mail Fill

Nova Line

Page Mail

Web Development Apps

Outgoing Mail

Outlined Fill - Streamline Material

Core Neon

Mail Send

Send

Sharp Solid

Mail Outgoing

Inbox

Core Solid

Mail Solo

Flex Line

Mail Reply

Plump Duo

Sharp Gradient- Free

Mail Loading

Plump Solid

Plump Neon - Free

Mail Search

Plump Flat - Free

Micro Solid

Mail Add

Sharp Flat

Sharp Remix

Flex Solid

Sharp Gradient

Mail Subtract

Sharp Line

Flex Neon

Mail Notification

Flex Remix

Mail Check

Flex Gradient

Core Duo

Core Remix

Core Flat

Core Gradient

Flex Duo

Plump Pop

Plump Line

Mail Incoming

Core Line

<p>Material Pro Sharp Line variant features sharp, angular icon designs in line format with improved coverage and consistency.</p>

**Summary**: Streamline Material's structured line variant — angular miter joins and sharp terminations on the same 24px-grid icon vocabulary, extending Material Design toward the technical and enterprise register without leaving the Material ecosystem. Consistently more structured, formal, and systematic than the Outlined variant across every axis. The tone signals "we follow conventions, but we are more precise than the standard" — the same icon shapes made more technical through corner treatment alone. Best for developer tools, data products, and enterprise software built within Material conventions that need a more structured visual identity than Outlined provides.

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

---

## Fit & Recommendation

### Primary use cases

- Products built within Material conventions that need a more technical, structured visual identity
- Developer tools, data products, and enterprise software using Material Design as a base system
- Admin panels and operations dashboards where the sharper geometry signals precision
- Cross-referencing with the Sharp variant of Google's own Material Symbols for users who prefer angular

---

## Brand & Cultural Identity

### What it communicates

> "We follow conventions, but we are more precise than the standard."

---

## Visual & Technical Specs

### Visual properties

| Property | Value |
|----------|-------|
| Stroke weight | ~1.5–2px |
| Fill | None |
| Corner treatment | Sharp / miter joins at corners — angular terminations, no softening at path endpoints |
| Color | Monochrome (black default) |

### Emotional Scores

Material Sharp Line is somewhat cold — angular miter joins and sharp terminations introduce coolness with no warmth cues at corners. It is somewhat hard — sharp corners and angular terminations increase perceived hardness beyond the Outlined standard. It is somewhat formal — angular corners shift the register toward formal-technical while the Material icon vocabulary keeps it accessible. It is somewhat serious — sharper geometry communicates more precision and structure than rounded equivalents. On its human↔mechanical character, it is somewhat mechanical — angular construction reads as more systematic, with miter joins suggesting mechanical drawing conventions.

---

## Pairing & Compatibility

### Typography pairing

- **Primary**: IBM Plex Sans — geometric construction aligns with the angular corner treatment
- **Alternative**: Neue Haas Grotesk — Swiss neutrality at moderate weight works with sharp Material icons
- **Display**: Space Grotesk — slight geometric personality without departing from accessible sans register
- **Body**: IBM Plex Sans Regular or Inter Regular
- **Avoid**: Rounded display fonts, warm humanist at heavy weights


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

Mail Lock

Mail Lock icon - Sharp Line - Streamline Material Set

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