Theory has online Sample Sale and prices start at $29 for Tops, $69 for Shirts, Sweaters and Skirts, $99 for Pants, $129 for Dresses and many other offers.
Offer is valid through Saturday February 27th, 2016

Theory has Flash Sale with 65% off Winter Essentials. Here are some great picks:
Relaxed Wool Ribbed Sweater for $120.75 (was $345),
Wool Maxi Coat for $302.75 (was $865),
Wool Aviator-Styled Jacket for $278.25 (was $795).
Offer is valid through Wednesday January 27th, 2016

Theory offers you this weekend 25% off everything with the code “WEEKEND” at checkout. The offer includes extra discount on up to 60% off winter sale.
Shipping is free.
Offer is valid through Tuesday January 19th, 2016

Theory offers you this weekend 25% off everything with the code “CHEERS” at checkout. The offer includes extra discount on up to 60% off winter sale.
Shipping is free.
Offer is valid through Sunday January 10th, 2016

Theory has winter sale with up to 60% off and today it offers $100 off every $400 spent. Use the code “PAYPAL100” at checkout.
Shipping is free.
Offer is valid through Monday January 4th, 2016