PNG SVG PSD EPS MORE
Interface
Flat
BigMug Solid
less, zoom, interface
Black
512x512
Users
Users, less, sign
interface, Minus, user
Business
Business Cards
Business, Card Icons, less
interface, Minus, symbol
Essentials
sign, magnification, option
Basic Icons
Basic Icons, Heart, interface
Signs
Mathbert Mathematics
cross, symbols, education
Universalicons
less, Minus, Circular
Hand Drawn
less, interface, Minus
sign, signs, Rest
Data icons
Minus, Cloud, interface
sign, less, documents
quit, outline, signs
Coolicons
interface, Cool Icons, less
sign, signs, less
zoom, less, magnification
other
iOS7 Premium
Minus, reduce, Minus Sign
buttons, signs, button
Web
General
web, signal, less
technology
volume, level, smartphone
Typicons
mathematics, maths, Subtraction
shapes
Entypo
Subtraction, underlined, line