# Nipple type included with Dr\. Brown's glass baby bottles What kind of nipple comes with Dr\. Brown's glass baby bottles? Dr\. Brown's Natural Flow Anti\-Colic Options\+ Wide\-Neck Baby Bottle: This is a Dr\. Brown's Natural Flow Anti\-Colic Options\+ wide\-neck baby bottle in glass, 5oz/150mL, with a Level 1 slow\-flow nipple\. The nipple is high\-grade soft silicone with a contoured breast\-like shape, designed alongside medical professionals to help avoid nipple confusion\. Dr\. Brown's Natural Flow Anti\-Colic Options\+ Glass Narrow Baby Bottle: The product is Dr\. Brown's Natural Flow Anti\-Colic Options\+ Glass Narrow Baby Bottle with Level 1 Slow Flow Nipple, 4 oz/120 mL, 1\-Pack, SKU SB41001, sold as Default Title\. Vacuum\-free feeding is described as closest to breastfeeding, with silicone nipples providing consistent flow so baby can feed at their own pace\. ### 1. [Dr\. Brown's Natural Flow Anti\-Colic Options\+ Wide\-Neck Baby Bottle](/products/ucp/drbrownsbaby-com/9139832979733) (sold by drbrownsbaby\.com) The nipple is high\-grade soft silicone with a contoured breast\-like shape, designed alongside medical professionals to help avoid nipple confusion\. - Nipple flow level: This is a Dr\. Brown's Natural Flow Anti\-Colic Options\+ wide\-neck baby bottle in glass, 5oz/150mL, with a Level 1 slow\-flow nipple\. (listing) - Nipple material: The nipple is high\-grade soft silicone with a contoured breast\-like shape, designed alongside medical professionals to help avoid nipple confusion\. (guide) - Nipple shape: The breast\-like nipple shape encourages a proper latch and gives a consistent flow so babies feed at their own pace\. (guide) ### 2. [Dr\. Brown's Natural Flow® Anti\-Colic Options\+™ Glass Narrow Baby Bottle](/products/ucp/drbrownsbaby-com/9139832160533) (sold by drbrownsbaby\.com) Vacuum\-free feeding is described as closest to breastfeeding, with silicone nipples providing consistent flow so baby can feed at their own pace\. - Nipple flow level: The product is Dr\. Brown's Natural Flow Anti\-Colic Options\+ Glass Narrow Baby Bottle with Level 1 Slow Flow Nipple, 4 oz/120 mL, 1\-Pack, SKU SB41001, sold as Default Title\. (listing) - Nipple material: Vacuum\-free feeding is described as closest to breastfeeding, with silicone nipples providing consistent flow so baby can feed at their own pace\. (guide) - Nipple shape: - Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-13T19:53:35.978Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)