Research boundary. Inputs: Water, Energy, Raw Materials. Outputs: CO2 emissions, Waste

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1 REFSCALE METHODOLOGY RefScale methodology Our sustainability research team created a life-cycle assessment tool to calculate the CO2, water, and waste footprints of Reformation products, as well as comparable products. We used primary data whenever available; otherwise we referenced secondary data and existing life-cycle assessments for select fabrics or processes. Finally, Clean Agency, a third-party sustainability consulting team, reviewed our methodology and data sources to verify the validity of our calculations. Research boundary The following boundary applies to our CO2 and water calculations: Inputs: Water, Energy, Raw Materials Outputs: CO2 emissions, Waste Fabric manufacturing Fabric dyeing Raw Material Transit Product Manufacturing Commercial Garment Wash Packaging Shipment Customer Garment Care Garment end-of-life For waste, there is very limited data on waste outputs in the fashion supply chain (fiber cultivation, fabric processing, dyeing, etc.). Instead, we focused on material wastes that we control directly through manufacturing and fulfillment processes: Product manufacturing (including fabric scraps & operating waste) Packaging How do we define comparable conventional clothing? We select comparable conventional clothing characteristics based on what fabrics and processes are most common for products sold in the US. Assumptions for comparable conventional clothing: -Same weight as the Reformation garment -For knits & linen wovens, majority content conventional cotton

2 -For viscose wovens, majority content conventional viscose -For deadstock wovens, majority content conventional viscose -For Recover sweater knits, majority content conventional wool -For Alpaca sweater knits, majority content conventional cashmere -For deadstock or Bluesign silk, majority content conventional silk -Manufactured in China in a factory without carbon offsets -Raw material air transport from China to LA -Poly bag inside a corrugated box for packaging -Small-package, ground shipping without carbon offsets What practices make Reformation different? -Lower-impact fabrics like vintage, deadstock, Tencel, flax linen, Alpaca yarn -Domestic suppliers whenever possible -Third-party certifications (Bluesign, Oeko-Tex) for low-impact and safe dye practices when available -Manufacturing in our own factory or a nearby factory in LA -Purchase of renewable energy credits for factory operations (100% wind) -Lower-impact, 100% recycled-content & recyclable packaging -Carbon neutral shipping program -Lower-impact garment care labels and recommendations -End-of-life recycling service

3 Other assumptions -We researched resource use of data centers and customers' computer usage, and found that the e-commerce impacts were negligible (per product). Therefore, retailing is not included in the boundary of analysis. However, the footprint of Reformation s online shopping platform ie. CO2 eq. emissions of servers and customer screen power consumption is calculated and offset separately. -Trims such as zippers, buttons, and fasteners were also found negligible and not included in the boundary of analysis. -For most blended fabric, we calculate emissions from the majority fiber unless the blended fibers are significantly different from one another in terms of environmental footprint i.e. for our a) alpaca and silk, b) viscose and silk c) silk and cashmere blends. For these blends, we calculate the footprint of garment weight by fabric composition. Example, for a fabric that is 70% viscose and 30% silk, we calculate the fabric impacts assuming 70% of impact is attributed from viscose and 30% is from silk. -For lining fabrics, emissions are calculated separately and added to the total emissions of the garment. -For deadstock and vintage fabrics, we do not assign a fabric impact since these come from secondary markets. We do calculate the rest of life cycle impacts including transit of the fabric and garment washing. -There is very little data available for wool yarns. We have valid data for conventional wool, but not for Alpaca, Cashmere, and other specialty yarns. Thus, we based our calculations on an animal to garment yield. On average, one alpaca yields 4 garments, one sheep yields 3 garments and one cashmere goat yields a quarter of a garment. We assume that these animals take the same resources to raise. NRDC says that alpacas actually consume less and Cashmere consumes more, but for the sake of being conservative (potentially understating impact of Alpaca) we assume similar footprints. We scale the numbers in proportion to our current research on wool to derive cashmere and alpaca footprints. -Dyeing calculations assume reactive dyeing processes. -Most Ref garments are not washed before hand, but if they are we calculate that they are washed in a commercial-top load machine at 13.5 lbs of clothing per load. -Packaging impact includes manufacturing as well as the end-of-life impact for all materials used.

4 -For garment care, we assume the average life of a garment is 52 washes. -We assume Reformation customers follow recommended lower-impact garment care label instructions instead of traditional professional cleaning. -Machine washing for at home garment care calculations are based on using cold water, and higher-efficiency front-loading machines. -For end-of-life, we assume Reformation customers recycle at a slightly higher rate than US average (30% vs.15%). This can be attributed in part to our free clothing recycling service, and our customers increased awareness of clothing waste. -For waste, we assume 15% of fabric yield goes to scrap. For Reformation, this fabric is recycled. For conventional, this fabric is included in waste output. -For waste, we assume that trash containers are 100% full at point of pick-up. We use average volume to weight conversions (via Recyclemania). We normalize this weight by the number of units produced. For conventional waste calculations, we received waste hauling data from three clothing manufacturers, and averaged these to get an estimate for a point of comparison. Current limitations There are some slight variations in system boundary and geographic focus for secondary sources. We ve done our best to compare apples-to-apples but in some cases, this is very difficult with existing data. We do our best to focus on cradle-to-gate, and will select the most thorough and conservative estimates when competing studies and data are available. We are currently unable to identify LCA reporting on Recycled Cashmere yarn, and are looking for better data for Alpaca, Cashmere, and Silk. If you can help, please let us know! Research citations Fabric Leather (cowhide) Lenzing Tencel Source for CO 2 eq. (secondary Muñoz, Zayetzi R. "Water, energy and carbon footprints of a pair of leather shoes ", ITM School of Industrial Engineering and Management KTH Royal Institute of Technology, June 2013 Source for Water (secondary Muñoz, Zayetzi R. "Water, energy and carbon footprints of a pair of leather shoes ", ITM School of Industrial Engineering and Management KTH Royal Institute of Technology, June 2013

5 Lenzing Modal Lenzing Viscose (conventional) Lenzing Viscose ASIA Lenzing Viscose AUSTRIA Viscose Conv. Cotton Organic cotton India Recycled cotton (USA) Chapman, Adrian., "Mistra Future Fashion Review of Life Cycle Assessments of Clothing". Mistra foundation for strategic environmental research. October 2010 Chapman, Adrian., "Mistra Future Fashion Review of Life Cycle Assessments of Clothing". Mistra foundation for strategic environmental research. October K. Babu, Murugesh, M. Selvadass, Life Cycle Assessment of Conventional and Organic Seed Cotton fibers. International Journal of Research in Environmental Science and Technology. February In Muthu, S. S., & Textile Institute (Manchester, England). (2015). Handbook of Life Cycle Assessment (LCA) of textiles and clothing. The Lifecycle Assessment of Organic Cotton Fiber, Textile Exchange, November 2014 Woolridge, Anne C., et al. "Life cycle assessment for reuse/recycling of donated waste Chapman, Adrian., "Mistra Future Fashion Review of Life Cycle Assessments of Clothing". Mistra foundation for strategic environmental research. October 2010 Chapman, Adrian., "Mistra Future Fashion Review of Life Cycle Assessments of Clothing". Mistra foundation for strategic environmental research. October 2010 Chapagain, A. K.; Hoekstra, A. Y.; Savenije, H. H. G.; Gautam, R. The water footprint of cotton consumption: An assessment of the impact of worldwide consumption of cotton products on the water resources in the cotton producing countries. Ecol. Econ. 2006, 60 (1), The Lifecycle Assessment of Organic Cotton Fiber, Textile Exchange, November 2014

6 Recycled polyester (USA) Polyester (USA) Conv. Acrylic textiles compared to use of virgin material: A UK energy saving perspective." Resources, conservation and recycling 46.1 (2006): Woolridge, Anne C., et al. "Life cycle assessment for reuse/recycling of donated waste textiles compared to use of virgin material: An UK energy saving perspective." Resources, conservation and recycling 46.1 (2006): Estimating the carbon footprint of a fabric, O Ecotextiles, January 2011 Barber, Andrew, and Glenys Pellow. "LCA: New Zealand merino wool total energy use." 5th Australian Life Cycle Assessment Society (ALCAS) Conference Barber, Andrew, and Glenys Pellow. "LCA: New Zealand merino wool total energy use." 5th Australian Life Cycle Assessment Society (ALCAS) Conference Alpaca Derived from wool Derived from wool Wool Jones, G., Plassmann, K., Harris, I., "The Carbon Footprint of Sheep Farming in Wales", Bangor University, 2008 Mekonnen, M. M., Hokestra, A. Y., "The Green Blue and Grey Water Footprint of Farm Animals and Animal Produce", UNESCO-IHE, December 2010 Cashmere Derived from wool Derived from wool Linen/Flax Hemp Conventional Silk Estimating the carbon footprint of a fabric, O Ecotextiles, January 2011 Estimating the carbon footprint of a fabric, O Ecotextiles, January 2011 A Carbon Footprint for UK Clothing and Opportunities for Savings, WRAP, July 2012 Bio Intelligence Service, Issu, As of October 2016 Cherrett, Nia., Barrett, John., Clemett, Alexandra., Chadwick, Matthew., Chadwick, M.J., Ecological Footprint and Water Analysis of Cotton, Hemp and Polyester, Stockholm Environment Institute Review of Data on Embodied Water in Clothing, URS, July 2012

7 Peace silk Nylon Muthu, Subramanian Senthilkannan, ed. Handbook of life cycle assessment (LCA) of textiles and clothing. Woodhead Publishing, van,. V. N. M., Patel, M. K., & Vogtländer, J. G. (February 01, 2014). LCA benchmarking study on textiles made of cotton, polyester, nylon, acryl, or elastane. The International Journal of Life Cycle Assessment, 19, 2, Note: Cradle to gate boundary normalized to 1 lb of fabric Muthu, Subramanian Senthilkannan, ed. Handbook of life cycle assessment (LCA) of textiles and clothing. Woodhead Publishing, Transporation Ship transportation Truck transportation Air transportation Source for CO2 eq. (secondary Jungmichel, Nobert., The Carbon Footprint of Textiles, Systain Consulting, July 2010 Fact Sheet: Vehicle Efficiency and Emissions Standards, Environmental and Energy Study Institute, August 2015 Fact Sheet: Vehicle Efficiency and Emissions Standards, Environmental and Energy Study Institute, August 2016 Source for Water (secondary Note: 1. Combination of ship and truck is used for overseas transport 2. Calculated from vendor to Reformation HQ Dyeing Type of research Source Reactive batch - India / China Reactive batch - US / Europe Reactive yarn - India / China SimaPro (Ecoinvent Database, Method Ecoindicator 95) Ibid Ibid Reactive yarn - US / Ibid

8 Europe Avg b/q reactive/vat/sulphur dye batch - India / China Ibid Avg b/w reactive/vat/sulphur dye yarn - India / China Notes: Adjusted for reactive dyeing process Ibid Manufacturing Type of research Source Manufacturing - Reformation Manufacturing - Send-out Primary and Primary and 2010 EGRID Data ( ocuments/egrid-zips/egrid_9th_e dition_v1-0_year_2010_summary_ Tables.pdf) Ibid Cut & Sew (China) Earthsmart database Commercial garment wash Source for CO2 eq. (secondary Source for Water (secondary Garment wash in finishing stage Energy Efficiency and Renewable Energy Office, 2006 Notes: Assumes 15 gallons water per load Energy Efficiency and Renewable Energy Office, 2006 Packaging Type of research Source 100% recycled content mailer, domestic trucking from Indiana to Los Angeles Earthsmart Conventional poly Earthsmart

9 bag, extrusion, int l freight from China Notes: Includes end of life for packaging material Shipment Type of research Source Shipping (Conventional) Primary UPS average domestic shipment Shipping (Offset) Primary UPS Carbon Neutral Program Garment care CO2 eq. (secondary Water (secondary Top load warm machine wash and dry Apparel Industry Life Cycle Carbon Mapping, Business for Social Responsibility, June 2009 Barthel, Claus., Gotz, Thomas., What users can save with energy and water efficient washing machines, BigEE, March 2013 Dry cleaning Apparel Industry Life Cycle Carboon Mapping, Business for Social Responsibility, June 2009 Hand wash Do all laundry by hand, Three Actions Project, As of October 2010 Front load warm Machine wash and dry Barthel, Claus., Gotz, Thomas., What users can save with energy and water efficient washing machines, BigEE March 2013 Residential Clothes Washer Introduction, Alliance for Water Efficiency, As of October 2016 End of Life CO2 eq. (secondary Water (secondary 30% Recycling Rate EarthSmart 15% Recycling Rate EarthSmart

10 Waste CO2 eq. (secondary Water (secondary Reformation Manufacturing Waste Conventional Manufacturing Waste Primary Primary Waste hauling data (self-report from Reformation) Waste hauling data (self-report from 3 garment manufacturers) Fabric Scrap 15% Rate ABERNATHY, F. H., DUNLOP, J. T., HAMMOND, J. H. & WEIL, D. A stitch in time. Lean retailing and the transformation of manufacturing - Lessons from the apparel and textile industries. Oxford University Press