PRE-ORDER: THE BASE TANK TOP
UPF 30
The everyday ribbed cotton tank, reworked with sun protection.
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Description
Edition 002
Material
Fit
Care
UPF Rating
What is UPF?
UPF stands for Ultraviolet Protection Factor — a rating assigned to fabrics that measures how effectively they block the sun’s broad-spectrum UV rays before they reach your skin. Like SPF for sunscreen, UPF measures protection, and every fabric has a rating whether listed or not. For instance, a standard white t-shirt has a UPF of just 3. Shade’s proprietary CottonUPF+ formula, however is certified UPF 40+ under AATCC’s TM183 standards —making it the only 100% cotton white tee on the market with built-in sun protection.
Several factors influence a fabric’s ability to block UV rays: weave tightness, fiber type, color, and any treatments applied. While some fibers like unbleached cotton or certain polyesters naturally offer more protection, many sun-protective garments rely on synthetic materials. Through our research, we found most UPF clothing contains some for of polyester or plastic— materials that are less breathable and environmentally taxing. Shade New York pioneered a non-toxic, plastic-free alternative, making sun safety more comfortable and sustainable without compromising style.