REI Co-op Rainier Rain Jacket - Infants'/Toddlers' review

REI Co-op's Rainier Rain Jacket - Infants'/Toddlers' (item C01911) is a separate small-child rain shell in the current REI Co-op rain-jacket directory. Its exact page describes a 2.5-layer recycled-ripstop nylon shell with a waterproof/breathable coating, fully sealed seams and a durable water-repellent finish made without PFAS. The page presents it as a weather shell, not a padded or insulated coat. Its details and size range should not be borrowed from either the larger Kids' Rainier or an adult Rainier.

A shell arrangement for chosen layers

The technical specification names 100% recycled ripstop nylon and a 2.5-layer waterproof/breathable coating. Unlike the Kids' Rainier page, this product page does not identify the coating as HydroWall, so this review does not assign that membrane name to item C01911. REI calls the jacket waterproof and breathable and says its seams are fully sealed. It gives no numerical waterproof-pressure or breathability result. No separate insulating piece is listed; the practical arrangement is the shell over clothing selected by the caregiver, with warmth coming from those layers rather than the jacket itself.

REI lists a weight of 4.9 ounces, but does not attach that figure to a particular size on the technical specification panel. It should not be used as a size-specific measurement or a promise about the weight of a chosen size. Nor does the page define a temperature range, a measured rain duration or performance while a child is moving.

Details tailored to the infant/toddler listing

The listed three-panel hood has a laminated brim, a rear hook-and-loop adjustment tab and elastic at the sides of the opening. A soft-tricot-lined chin guard sits at the zipper area. REI lists elastic cuffs, hand pockets, 360-degree reflectivity, a write-on ID label and an interior locker loop. Those details help distinguish this page from the Kids' Rainier, which uses different hood and pocket language. The page does not state a reflective-performance standard, quantify visibility, or say the hand pockets close with zippers.

REI's care instructions say to secure zippers and closures, machine wash cold, avoid bleach and fabric softeners, and tumble dry low. It also advises cleaning and drying rainwear and renewing DWR if wetting out persists afterward. A replacement wash-in or spray-on finish is not part of the listed jacket configuration. These are manufacturer maintenance directions, not evidence that reproofing will restore a particular result in every case.

Use the infant/toddler size chart

This page lists sizes 12 months, 18 months, 2T, 3T and 4T. That infant/toddler block is not the same as the larger Kids' XXS–XL range or an adult fit block. Check the current size chart against the child's actual measurements and the clothes intended beneath the shell; the product page does not give a fit guarantee, coat length, or a personal measurement recommendation. A 4T label alone should not be used to infer a particular child's sleeve or hem coverage.

Do not assume extra ventilation or pocket stow

Underarm pit zips and an own-pocket stow route are not listed in the checked feature set. The right conclusion is that these capabilities are unconfirmed for this exact item, not that no physical version could have them. The REI category's broad “packable” filter does not identify a self-stowing pocket or packed dimensions. If pocket stow or pit zips matter, require the exact item page to state the feature rather than borrowing it from a Rainier sibling.

The DWR statement is similarly narrow. REI says the finish is made without PFAS; the page does not extend that statement to every textile, zipper, trim or component, and it does not report residual chemistry. The jacket should not be described as categorically PFAS-free.

Compare the adjacent Rainier size block carefully

The current Kids' Rainier is item 227851. It shares the documented 2.5-layer recycled-ripstop shell idea and the DWR wording, but its exact page names HydroWall and lists adjustable cuffs, a different pocket description and reflective details. C01911's page instead names a coating without the HydroWall brand, a lined chin guard, elastic cuffs and 360-degree reflectivity. REI lists 4.9 ounces for this infant/toddler item and 7.4 ounces for the Kids' item, without tying either number to a size. The distinction is not a measured ranking; it is a reminder to compare the correct age-specific size chart and feature page. See the Kids' Rainier assessment for its separate evidence.

When this model belongs in a comparison

Consider this item when the target is an infant/toddler-block shell with a documented recycled-nylon ripstop face and no listed built-in insulation. Confirm the exact item C01911, the size chart and the precise contents of any offer. Decide whether the listed hood, chin guard, elastic cuffs, reflectivity and hand pockets meet the child's needs. If the buying requirement is pit-zip ventilation, self-stow, specified membrane numbers, an insulating layer or exact packed dimensions, the checked REI page does not establish it. This is a source-based assessment rather than a try-on or field test; no price, stock or customer experience is claimed.