Size Up! by Sons of Selvedge - Get the right size on the first try when shopping online.

Unlike generic size charts, Size Up! uses an AI agent that knows your body and your wardrobe. Paste any product link and get a size rec based on garments you already own and love — not guesswork. Built for shoppers of smaller, heritage brands (raw denim, Goodyear-welted boots) where fit varies wildly and sizing feels like a gamble. You can even ask the agent follow-up questions, like chatting with a knowledgeable fit specialist.

👋 Hey PH — I'm David. After 4.5 years deep in AI (prompt engineering, LLM eval, multimodal UX) on Amazon Alexa+, I set a 2026 goal: build and launch products solo, AI-assisted. First one: Size Up! — a web app that helps you get the right size on the first try when shopping online, especially for smaller heritage brands where sizing is inconsistent. How it works: 🧵 Size Advice & Fit Chat — paste a product link, and the agent recommends your size based on your wardrobe and body measurements. Ask follow-ups anytime. 👕 My Wardrobe — save your favorite garments with photos + measurements. 📏 My Body — save your own measurements to sharpen recommendations. Free to try now. Would love feedback, especially from anyone who's been burned by online sizing before (raw denim and boot people, I see you 👢). sizeup.sonsofselvedge.co

Size Up! by Sons of Selvedge - Get the right size on the first try when shopping online.

Replies