Strange Twinning interprets strangers with different cultures and living environments understand and resonate each other. Globalization connects people with mixed identities, different backgrounds, status and cultures, and they establish a sense of identity through preferences, experiences, appearances. And we call it a hybrid age. The cultural shock brings a crisis of hybrid identity to the younger generation. They are busy with virtual social networks with an identity of private-sphere uploader, express a "natural vagrancy" attitude, pay for their hobbies and ideas, and become the major consumer group of coterie economy. Big data allows them to meet their doppelgangers, connects them who have different subcultures and aesthetics, and forms various interpersonal cultures. They are imaginative and creative. They privately customize their own styles such as "fair-skinned, young and slim" or "sweet, beautiful and quirky", break boundaries between interpersonal cultures through content socialization and inversely influences the mainstream.

The COVID-19 pandemic, turbulent politics and unstable society trigger our fear. And the digital technology spreads fear quickly. People are eager to escape from reality and extends their individuality through surreal, dark, edgy street looks. Maison Margiela A/W 20/21 displays a surrealistic artistic collection via digital video. Therefore, in A/W 21/22 the mystical dark tone will prevail in womenswear fabrics, appeals to young consumers via charming street fashion culture and drives the rise of horror aesthetics.

Ethereal gauze has always been favored by online celebrities and mega brands. Alexander McQueen, Gucci, Dior and Valentino all use this feminine and exquisite fabric in the new series. The hazy second-skin hand feel, fluffy textures and romantic flowers team up with chic soft layered designs to interpret the charm of gauze and display the strong femininity.

The Wimbledon Championships in June 2020 is suspended due to this pandemic. Roger Federer, a grand slam of four major tennis tournaments and with the world's highest score, has raised money for Australian wildfire. Tennis has developed from an aristocratic competitive sport into a general public sport, and tennis apparel is also affected by the vintage trend, showing a light retro style in 2021. Womenswear is dominated by sets and dresses, and the length is longer for convenient movements. Considering sweat and due to the pandemic, tennis apparel features detail craft changes, as well as the breathable and antibacterial fabric. We recommend Ralph Lauren's latest Earth Polo which is a waterless dyed polo shirt made from an average of 12 plastic bottles, and a tennis skirt in bio-fabric released by Adidas × Stella McCartney in 2019.

Resource waste and environmental pollution brought by fast fashion enhance our awareness to sustainable fashion. Customers get tired of stereotyped products and long for something undiscovered, historic, storytelling and souled. The organizers of S/S 2020 Paris Fashion Week initiate Good Fashion Paris campaign to bring together industry insiders on sustainable development. France has legislated against excessive waste in the fashion industry: luxury brands are not allowed to burn clothes! We reflect on the excessive mechanical aesthetics, and take the past as experience. Just like during the Victorian era, Belle Époque and the transitional period from Industrial Revolution to monopoly capitalism, we call for art restoration, reinterpret classical decoration and resist excessive waste of resources by fast fashion.

In S/S 2021, sports-oriented consumers pursue durable and individual design and skin-friendly products on the premise of health. They like simplified consumption, so they will choose multifunctional items. Producers need to promise the comfort of items and focus on functionality and practical details. So the light undershirt and basic items will emerge. Fabric with a naked feeling brings an unconstrained flexible sense and a skin-friendly feel, and it can shift between work and sports.