SIZE-SPECIFIC SUPPORT: Our shoe trees for men & women provide a snug fit without spring tension; supports sneakers, shoes, and most boots. AIRFLOW WHILE DRYING: 11 air channels + and elevated push/pull tab help air move through shoes during the overnight 8-hour reset and drying process. AIRFRAME STRUCTURE: Supports toebox, vamp, midfoot & tongue to help reduce collapse and deep flex-point creasing after every wear. 4 SIZES (S-XL): SMALL (Men 4-6/Youth; Women 5.5-7.5) | MEDIUM (Men 6.5-9.5; Women 8-11) | LARGE (Men 10-13; Women 11.5-14.5) | XL (Men 13.5-16; Women 15-17.5). IMPORTANT: On the cusp sizing can vary by shoe type. TRAVEL SHOE TREES: Ultra-light, single mold airframe slides in/out fast and helps protect uppers in bags and suitcases (crush-guard effect). NO SPRINGS / NO METAL: Spring-free, metal-free design supports shape (Fresh Flows are not a shoe stretcher or expander). Fresh Flow Shoe Trees are size-specific plastic shoe trees made for the hours after wear - when shoes are warm, slightly damp, and most likely to lose shape if left unsupported. Our patented “airframe” supports sneakers, shoes, and many boots during the ‘8-hour Reset’ after wears, so footwear dries and settles in its natural shape instead of slumping. WHY FRESH FLOWS ARE DIFFERENT Support with No Stretch: spring-free, metal-free, single-mold ABS with no aggressive tension. Airframe + Airflow: Provides full support of the toebox, vamp, midfoot, and tongue while 11 air channels help shoes dry with ventilation. 2-Second Routine: Shoes off > Fresh Flows in > reset overnight (about 8 hours). Travel-Ready: Ultra-light and built to help protect uppers in bags/suitcases (crush-guard effect). Tested Across 50+ Shoe Brands: to provide true support for most round-toe shoes. Designed to Extend the Life of Shoes: Fresh Flows help shoe uppers last 3X longer. SIZING (recommended): Small: Men 4–6 + Youth/Big Kids | Women 5.5–7.5 Medium: Men 6.5–9.5 | Women 8–11 Large: Men 10–13 | Women 11.5–14.5 XL: Men 13.5–16 | Women 15–17.5 Note: Fresh Flows should fit snug without pushing out on materials. Fit can vary by shoe type, toebox shape, and how worn-in shoes are. FAQ Will these stretch my shoes? No. Fresh Flows are shoe trees designed for support, not stretching. Do they remove creases? No. Fresh Flows are designed to help reduce deep flex-point creasing as shoes dry. Do they help with odor? Yes. Better airflow helps shoes dry quickly, which reduces lingering odor over time. Do they work for sneakers and boots? Yes, Fresh Flows are designed for all round-toe shoes including sneakers, shoes, and many boots. Born in West Los Angeles, The Kingsland Shoe Project rebuilt the old-school shoe tree for modern life: more people, more pairs, more travel, more environments.